GB/T 9721-1988 in English

SUPERSEDED

Chemical reagent-General rules for the molecular absorption spectrophotometry(ultraviolet and visible)

Issued on:1988-06-20
Implemented on:1989-04-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $260.00
$253.00

Standard No:	GB/T 9721-1988
Document status:	SUPERSEDED
Superseded by:	GB/T 9721-2006 Chemical reagent - General rules for the molecular absorption spectrophotometry (ultraviolet and visible)
Superseded on:	2007-04-01
Title in English:	Chemical reagent-General rules for the molecular absorption spectrophotometry(ultraviolet and visible)
Title in Chinese:	化学试剂分子吸收分光光度法通则(紫外和可见光部分)
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	1988-06-20
Implemented on:	1989-04-01
ICS Classification:	71.040.30-Chemical reagents
Chinese Classification:	G60-Chemical reagent in general
Professional Classification:	GB-National Standard
Related Keywords:	molecular absorption spectrophotometry inorganic chemical reagents organic chemical reagents chemical reagent visible light parts
Related Topics:	Optical rotation and UV absorbance Extinction Spectrum and UV Absorption Spectrum UV Spectrophotometric Solubility UV Absorption UV Spectrophotometry visible light UV absorber content test Pyrene UV-Vis Absorption Spectrum The UV absorption peak of zinc UV-Vis Absorption Spectroscopy UV absorbing chromium Aluminum Hydroxide UV Absorption Absorbance method Zinc UV absorption Volumetric UV Collection Gadolinium oxide UV absorption Gold ion UV absorption peak Dimmable UV UV spectrophotometer l9 visible ultraviolet spectrophotometer Acetic acid UV absorption Potassium chloride UV absorption Cobalt's UV-Vis Absorption Spectrum UV Absorption and Fluorescence of Perylene UV Fluorescence Spectrophotometer Zinc UV absorption UV methodology Visible light on time UV-Vis Extinction Spectrum UV Absorption Description Molecules absorb visible light Pigment UV absorption peak T6 UV-Vis Spectrophotometer Acetic acid UV absorption UV absorption of esters Solid UV absorption peak Does Zinc Absorb UV? UV and visible light methods How to Test Absorbance The UV absorption peak of the ester UV Vis Spectrophotometer UV Vis Spectrophotometer T6 UV-Vis absorption spectrum UV absorption intensity What is the UV-Vis absorption spectrum? t6 series UV visible spectrophotometer Absorption wavelength Absorbance time UV absorption peak of silver Chemical absorbance UV-Vis absorption and UV-Vis UV absorption of acetic acid UV atom Crystal UV-Vis Absorption Spectrum hg UV absorption UV and Visible Spectrophotometers UV photometer t6 UV-Vis Spectrophotometer Bromide ion UV absorption peak Chromium ion UV absorption peak Silver UV absorption peak UV-Vis Absorption Spectrum of Indigo Cobalt's UV-Vis Absorption Peak The UV absorption peak of gold ions UV photometry UV visible light n4 accumulation of UV absorption UV Spectrophotometer Operation light ultraviolet absorption Micro-volume UV Spectrophotometer Pyrene UV Absorption Fluorescence ionic reagent UV Acetic acid UV absorption Difference in UV Absorption UV Absorption and Spectrophotometry UV absorption spectrum absorption edge gel UV absorption UV Absorbance Gallium Molybdenum UV absorbance Trace UV Luminosity Agent UV Spectrophotometry UV-Vis Hexacyanocobalt UV absorption peak UV absorbing ester t6 UV spectrophotometer standard absorbance Visible UV spectrophotometer Gold ion UV absorption UV-Vis Total Absorption Sample preparation method for UV spectrophotometer Manganese UV Spectrophotometry Copper ion UV absorption UV Photometric Aluminum UV absorption spectrum peak splitting UV Spectrophotometry of Sulfuric Acid UV absorber test method Cobalt ion UV absorption peak UV absorption of silver Cobalt ion UV absorption Barium UV absorption UV and Visible Spectrophotometers Acetic acid UV absorption peak Alumina UV absorption Tannin UV absorption peak UV absorption peak acetic acid Spectrophotometer and UV Absorbance change The UV absorption peak of acetic acid UV spectrophotometry How to Test for UV Absorption How about UV-Vis Absorption Spectroscopy Determination of Cadmium by UV Spectrophotometry UV-Vis Spectrophotometer and Visible The UV absorption band of pyrene The UV absorption peak of copper ion UV Spectrophotometer and Visible Spectrophotometer UV-Vis + Peak UV absorption thickness Silver UV absorption standard absorbance UV polarized light Spectrophotometric visible Photometric absorption peak UV spectrophotometry using UV-Vis Spectroscopy and UV-Vis Spectrophotometer UV Spectrophotometer and UV Vis Spectroscopy UV absorption spectrum peak splitting UV-Vis absorption spectrum Absorption edge in UV diagram UV and visible spectroscopy UV gas absorption peak Gold UV Absorption Peak Intensity Absorbance peak The absorption edge of the UV absorption spectrum Acid UV absorption Gold UV Absorption Peak Intensity UV-Vis Applications UV-Vis spectrophotometer t6 Photometric Absorbance Visible Spectrophotometer UV-Vis spectrophotometer and UV spectrophotometer and UV absorption Petroleum UV spectrophotometry from Petroleum UV Spectrophotometry toc UV absorption see the light Visible UV spectrophotometer Affects UV Spectrophotometry UV spectral range Visible light 30 UV and Visible Spectrophotometers UV and visible light Visible Spectrophotometer and UV Spectrophotometer UV light verification UV zero order light Two groups of peaks of UV absorption t9 UV Vis Spectrophotometer Visible UV Spectroscopy Visible Spectrophotometer and UV Spectrophotometer UV-Fluorescence Spectrophotometer Visible light absorption spectrum UV spectrophotometry and Fluorescence Spectrophotometer and UV Spectrophotometer Fluorescence Spectrophotometer and UV Spectrophotometer Visible UV Spectroscopy Visible light absorption peak UV, IR and AA Pyrene UV absorption UV lithography UV-Vis Absorption Spectrum 2 UV Visible Spectrophotometer T6 Inside the UV-Vis Spectrophotometer UV absorption background UV Spectrophotometry Visible Light UV and visible light Differential UV Absorption Cadmium element by UV photometry UV Absorbance Concentration Methods of testing UV-Vis UV Fluorescence Spectrophotometer UV Atomic Spectrophotometer UV grating UV spectroscopic parameters UV photometric test wavelength UV spectrophotometry and water quality spectrophotometry UV visible light UV and visible absorption spectroscopy UV-Vis Spectroscopy and UV Spectroscopy Domestic chemiluminescent reagents nickel UV absorbing UV absorbance test method Visible Spectrophotometer and UV-Vis Visible light emission Visible Spectrophotometer and UV-Vis Spectrophotometer UV spectrophotometry water Petroleum UV Spectrophotometry UV photometric range Atomic Absorption Spectrophotometer and UV Spectrophotometer Determination method of ultraviolet-visible light photometer Atomic Absorption Spectrophotometer and UV Spectrophotometer Visible and UV Atomic Absorption Spectrophotometer with UV UV Spectrophotometry Polyphenols UV spectroscopic method visible Spectrophotometer absorption spectrum Carbon Monoxide UV Absorption UV spectrophotometry cod Why Control UV Absorbance How to test the absorbance by UV Visible UV UV Spectrophotometry Ultraviolet Spectroscopy and Visible Spectroscopy Concentrated UV UV and visible light UV spectroscopic+ range ultraviolet visible light uv Cadmium element UV spectroscopy UV Spectrophotometer Pyrene UV absorbance UV spectrophotometric detection How to use UV absorption UV Absorption Spectrophotometer UV spectral range UV Microphotometry Visible Spectrophotometer and UV UV absorbance detection method UV spectrophotometer and visible light Uses of UV Spectrophotometry Absorbance Intensity of UV Absorption UV-Vis Absorption Spectroscopy Inorganic Visible spectral range Absorbance Absorbance UV light absorbance Visible Spectrophotometer and UV Spectrophotometer UV-Vis spectrophotometer UV spectrophotometry oil Absorbance at How to Use UV Spectrophotometry Fluorescence spectrophotometer and UV UV absorbance meter UV-Vis spectroscopic test UV Spectrophotometry+ Range Visible spectrophotometer test method UV absorption peak of pyrene ring In addition, it can be seen Plasma UV Absorption Spectroscopy Fluorescence spectrophotometer UV Absorbance in UV Determination of Cadmium by Ultraviolet Spectrophotometry How to absorb ultraviolet visible light UV-Vis spectral collection UV Photometric Zinc Oxide UV Spectrophotometers and Spectrophotometers UV spectrophotometry oil Determination of Cadmium Ion by Ultraviolet Spectrophotometer external light Ultraviolet spectrophotometry and uv Sodium Chloride UV Photometry Pyrene UV-Vis Absorption Spectrum Powder UV absorption UV absorption spectrum of ions UV absorption spectrum of water molecules Sodium chloride UV absorption UV absorbing structure Cadmium Ion UV Spectroscopy UV-Vis Spectrophotometry Films Polymer UV Spectroscopy Ultraviolet Absorption of Carbon Tetrachloride Affect UV spectrophotometric detection UV absorption concentration Conjugation of UV-Vis Absorption Spectra UV and Visible Spectrophotometers Determination of Lithium by UV-Vis Spectrophotometry UV-visible light measurement visible light dye carbon tetrachloride UV absorption Impurity UV absorption Quantitative analysis by UV spectrophotometry UV-Vis Absorption Spectrum Peak Position UV fluorescent molecules Cadmium with UV Spectroscopy Determination of content by ultraviolet spectrophotometry UV absorption of n Molybdenum ion UV absorption UV spectrophotometry water UV spectrophotometric water UV-Vis Absorber UV ruler UV absorber synthesis visible light absorber Molecular UV Spectrophotometer UV photometry Reagents for UV Spectrophotometry UV photometry Flame Spectrophotometer and UV UV Spectrophotometry UV Spectroscopy UV absorbable peak laser absorber UV spectrophotometry operation UV spectrophotometry s UV absorbance of water UV absorbing UV visible UV Spectrophotometric Salts UV absorption concentration boric acid UV spectrophotometry Gold ion UV absorption peak Alkyne UV absorption Visible light parameters UV absorbance is too small UV spectrophotometry B UV light UV Molecular Spectroscopy Confirmation of UV absorbance UV-visible absorption spectrometer Juice by UV Spectrophotometry Chromium content UV spectrophotometry Cadmium by UV Spectrometry UV adjustable light source UV absorption humidity Nickel's UV Absorption UV-Vis absorption spectrum and UV-Vis absorption spectrum in visible light material UV Spectrophotometer and UV Spectroscopy Enhanced UV absorption Tannin UV absorbing UV-Vis Absorption Spectroscopy and Fluorescence The UV absorbable spectrum is given by UV Spectrophotometry Orange UV Spectroscopic Uncertainty UV-Vis spectrophotometric assay Portable UV-Vis UV spectrophotometer and UV Molecular Spectroscopy UV Photometric Accuracy UV-Vis Absorption Spectrum Fluorescence UV spectrum ions Absorbance UV Spectrophotometry Concentration Absorption wavelength Chromium ion detection UV spectrophotometry In situ UV-Vis absorption spectroscopy UV Spectroscopy Molecules UV nonlinear optics UV-Vis absorbing conjugated Ultraviolet Absorption Spectrophotometry Content Determination Method UV Spectrum UV-Vis UV Molecular Light In the UV-Vis absorption spectrum, for UV-Vis Absorption Peak Position Cadmium Ion UV Spectrophotometry UV spectrophotometry Atomic Absorption Spectrophotometer and UV Spectroscopy UV Spectroscopy Vis Spectroscopy Is an atomic absorption spectrophotometer the same as a UV spectrophotometer? How to use UV-Vis Absorption Spectroscopy Inside the UV-Vis Spectrophotometer UV Spectrophotometer and Atomic Absorption Photometer UV absorption peak shift Determination of Cadmium Ion by UV Spectrophotometry UV Applied Optics Molecular UV Absorption Spectrum UV and visible absorption spectrum Enhanced UV absorption peak Potassium iodide UV absorption Visible Spectrophotometer and UV UV Applied Optics UV Absorption and UV Spectrophotometry UV spectrophotometer sample preparation method Lithium ion UV absorption peak visible light ultraviolet light UV absorption saturation Molybdenum Telluride UV-Vis Absorption Spectrum Ion UV Spectroscopy ion ultraviolet absorption spectrum UV-Vis Absorption Spectroscopy Molecular Absorption Spectroscopy and UV The main spectrophotometer UV-Vis Absorbers Inorganic molecules absorb visible light UV spectrophotometer UV-Vis spectrophotometry t6 visible light invisible light Micro UV Vis Spectrophotometer UV and visible UV photon detection Fluorescence UV Spectrophotometer gb/t9721 UV spectrophotometry Fluorescence UV Spectrophotometer UV Vis Photometer Ultraviolet Atomic Spectroscopy UV Spectroscopy Structure UV and Visible Absorption Spectroscopy Ionic UV absorption UV-visible and UV-absorbing Visible - UV spectrophotometric content About UV Spectrophotometry UV Spectrophotometry and UV Absorption UV-Vis Spectroscopy UV Absorptiometry About UV Spectrophotometry Chromium Ion UV Spectrophotometry UV Spectrum Absorbance UV Absorptiometry Inorganic Ion UV Spectroscopy Ultraviolet Spectroscopy Electron Absorption Spectroscopy UV Spectroscopy + Structure UV absorption type UV Spectroscopy Ion UV Spectrophotometry UV Spectroscopic Absorption Spectroscopy UV-Vis Absorption Spectroscopy UV absorbing structure UV-Vis Absorption Spectroscopy Inorganic UV-Vis absorbing Electron Absorption Spectroscopy UV Atomic Photometer UV UV photometer UV spectrophotometry using UV-Vis absorption in How to measure UV absorbance UV Absorption Peak Absorption Intensity UV-Vis Absorption Peak UV photometry cod Tick absorbance Determination of Concentration by UV Absorption Spectroscopy Cadmium lead UV spectrophotometry UV spectrometer method Determination of Cadmium by Ultraviolet Spectrometry How to operate UV-Vis spectroscopy ionic UV-visible Electron Absorption Spectroscopy and UV Spectroscopy Bismuth Selenide UV-Vis Absorption Spectrum UV Spectroscopic Absorption Spectroscopy Sodium chloride UV absorption UV Spectrophotometer and Atomic Absorption Electron Absorption Spectroscopy and UV In the UV-vis absorption spectrum UV-Vis Absorption Spectrum Conjugation UV Differential Optical Absorption Spectroscopy UV Spectroscopy UV Absorption Spectroscopy Molecular Sieves Atomic absorption spectrometers are as different as ultraviolet spectrometers UV Spectroscopy and UV Spectrophotometry UV absorption peak of cobalt ion Infrared Absorption and Ultraviolet Absorption UV Fluorescence and UV Absorption UV-Vis absorption spectrum UV Differential Absorption Spectroscopy Atomic Absorption Spectrophotometer and UV Absorption Spectroscopy What is UV-Vis Absorption Spectroscopy? UV absorption energy UV fluorescence absorption spectrum Chromium UV Spectrophotometry UV Spectrophotometer Luminosity Ratio Chromium UV Spectroscopy Potassium chloride UV absorption UV-Vis spectral range Using UV spectrophotometry UV absorption of ions UV-Vis Absorption Spectrum Peaks Ion UV Spectroscopy Visible Spectrophotometry and UV Spectrophotometry UV spectrophotometry Absorption spectroscopy UV spectrophotometry UV absorption ms Atomic Spectrophotometer and UV Spectrophotometer What is the UV-Vis Spectrum? filter paper UV absorption UV Absorption Spectroscopy Electronics UV spectrophotometric detection Determination of Concentration by UV Absorption Spectroscopy UV absorption sample concentration UV spectrophotometry and UV spectroscopy nm absorption peak UV UV spectroscopic method water for UV spectrophotometry UV absorbance of urea UV absorption sample concentration Trimethylamine UV spectrophotometry UV spectrophotometer and atomic spectrophotometer UV Spectrophotometer and Atomic Absorption Spectrophotometer UV Spectrophotometer Atomic Absorption Spectrophotometer UV spectrophotometric measurement Absorption Spectrum of Visible Light UV Absorption and Concentration UV Spectrophotometry Spectroscopy UV Spectrophotometry UV-Vis Spectrophotometry UV spectrophotometry UV spectrophotometric cadmium UV Spectrophotometer and Fluorescence Spectrophotometer How to measure content by UV-Vis spectrophotometry Ultraviolet Absorption Spectrum of Ferric Chloride UV-Vis and UV-Vis Diffuse Reflectance UV absorption of gold ions UV Vis Absorption Other Absorption UV absorbing metal In the UV-Vis absorption spectrum Absorbance value and absorbance photometric value visible light and ultraviolet light Uranyl UV absorbing Visible light instrument Absorbance 3 UV absorbance Phenol Reagent Spectrophotometry Sodium Sulfate UV Spectrophotometry UV Spectrophotometry and Titration Sodium chloride UV absorption peak UV Spectrophotometer and Micro-Volume Spectrophotometer UV-Vis-Vis Absorption Spectroscopy UV region UV spectrophotometry copper UV absorption unit Sodium Chloride UV Spectrophotometry Tungsten UV Spectrophotometry UV spectrophotometry oil content Cadmium in UV spectrophotometer Atomic Absorption Spectrophotometer UV Spectroscopy Solid UV Absorber UV Absorption of Potassium Chloride Ferric Chloride UV Absorption UV absorption of copper ions themselves Determination of concentration by micro-volume ultraviolet-visible spectrophotometer UV absorption point UV-Vis absorbance Ferric Chloride UV Absorption Peak UV-Vis Spectrophotometric Peaks UV light and visible light UV and visible light UV absorption spectrum of anion UV Spectroscopy UV Spectroscopy How to absorb by UV-Vis UV spectrophotometric tungsten UV spectroscopy and UV spectrophotometry UV Absorption Spectroscopy Spectrophotometry UV Absorption Spectroscopy and Spectrophotometry UV-Vis spectrophotometry with Classification by UV Spectrophotometry UV spectroscopic sample cell UV absorption peak intensity Reagents for UV Absorption laser absorber Water UV absorption peak UV-Vis Absorption Peak Ionic UV absorption properties Zinc Oxide UV Absorption Determination of bismuth by ultraviolet spectrophotometry Ultraviolet Light Absorption Wavelength UV absorption spectrum and concentration UV absorption has multiple peaks UV absorption and concentration UV absorption peak concentration UV spectrophotometer test method UV Spectrophotometric Antioxidant visible light absorption UV Spectrophotometry Procedure In this paper, UV spectrophotometry was used to Absorbance of UV absorption spectrum Phenol UV-Vis Spectrophotometry UV spectrophotometric detection method UV Absorption and UV Photometry Zinc chloride UV absorption peak UV absorption peak of copper Copper UV absorption peak UV-Vis Absorption Spectroscopy Cobalt Beryllium window for visible light UV brand UV absorption boundary UV light path Ferric Chloride UV Absorption Spectrum Visible light splitter When tested by UV spectrophotometry nPyrene UV absorption Concentration UV absorption Solid UV absorption Naphthalene en pyrene UV absorption Inorganic ion UV absorption UV absorbance range UV Spectrophotometric Sample Preparation UV-Vis Absorber The UV and visible absorption spectra were The UV-Vis absorption spectrum is given by UV Optic Mounting Absorption length In the UV-Vis absorption spectrum, the Method for measuring ultraviolet spectrophotometry Chloride Ion UV Spectrophotometry UV spectrophotometric analysis method UV Spectrophotometry UV Photometry and UV Absorption Test method for UV absorbance Iodine visible light absorption peak UV differential light UV Vis and Vis UV spectrophotometry results UV test reagent UV Spectrophotometry and UV Spectrophotometer UV light Nickel by UV spectrophotometry Iron compounds UV absorbing heavy metal UV absorption UV-Vis Absorption Spectroscopy Sample Preparation UV photometry and UV absorption method 1 Solid UV absorbing edge Purity by UV Spectrophotometry UV Spectrophotometer Absorbance UV Absorption Spectroscopy and UV Spectrophotometry Spectrophotometry UV Absorption Absorption Spectrophotometry Cobalt ion UV absorption peak UV photometric structure UV differential light UV absorption level UV background absorption Visible light absorption spectrum UV Differential Absorption Spectroscopy UV absorption of carbon materials UV Absorption Reflection and Absorption UV-Vis absorption region UV-Vis photometry UV absorption spectrum test concentration Amine UV Spectrophotometry Atomic Absorption Spectrophotometry UV Spectrophotometry UV-Vis Spectrophotometry UV-Vis Spectrophotometry Absorption peaks in UV-Vis Atomic Spectrophotometer and UV Spectrophotometer Atomic and UV Absorption Spectrophotometers UV Spectrophotometry and UV Absorption Spectroscopy UV Absorption Spectroscopy and UV-Vis Absorption Spectroscopy Why does Potassium Chloride absorb UV rays? Sodium ion UV absorption carbon tetrachloride UV absorption Microvolume Spectrophotometer UV Absorption Use of UV-Vis Absorption Spectroscopy The UV-Vis absorption spectrum was given by UV absorption c UV-Vis absorption edge UV Spectrophotometer Absorption Cell Absorbance by UV Spectrophotometry UV absorption intensity UV absorbance versus non-spectral ultraviolet absorption spectrometry Double Photometric UV Test Method UV Spectrophotometry UV Absorption UV photometry UV absorption method UV photometry UV absorption method UV absorbance photometry UV absorption method UV photometry UV-Vis Calibration mn UV absorption peak Chloroform UV absorption peak Iron UV absorption peak Visible light and ultraviolet light ultraviolet light visible light UV-Vis absorption and UV-Vis Absorption Spectroscopy Inorganic The area of the UV absorption peak visible light absorber UV Absorption Spectroscopy and UV Spectrophotometer Spectrophotometry and UV-Vis Visible UV Absorption Spectrum and Invisible UV absorbing and UV visible Determination basis of ultraviolet-visible spectrophotometry UV Spectrophotometer Absorption Cell Why UV Spectrophotometry UV Spectrophotometric Detection Method UV spectroscopy and photometry UV spectrophotometry UV spectrophotometry Difference of UV Absorption Spectrum Chloroform UV absorption peak Gel UV absorption peak Copper ion UV absorption peak Silver UV absorption peak UV photometric absorption peak absorb visible light UV Spectroscopy Vis Spectroscopy UV absorption peak saturation UV zinc reagent UV-Vis Spectrophotometer and Visible Spectrophotometer UV spectrophotometry plus UV spectrophotometer and visible UV absorbance UV-Vis absorption spectrum in water UV electron absorption spectrum How does UV absorb light bromoacetic acid UV absorption How visible light is absorbed UV-Vis absorption and UV absorption Strong UV Silver absorbs UV light UV spectrophotometry UV spectrophotometry test range UV Spectrophotometric Range What does the UV spectrophotometer measure? UV Differential Optics UV Spectrophotometer and UV Spectrometer UV Spectrophotometry Gasoline Absorbance value Chromium ion by UV spectrometry Urea UV absorbance UV spectrophotometric concentration UV intensity Spectrophotometry and Absorption Photometry Copper ion UV absorption peak Absorbance change Atomic Spectrophotometer UV Spectrophotometer UV absorption pool classification Atomic UV Spectroscopy absorbance+peak Ionic UV absorption Iron UV absorption UV spectrophotometric absorption coefficient method Chromogenic method and UV spectroscopy UV absorption Absorption Spectrum of UV Spectrophotometer Pyrene base UV absorption UV absorbance over 1 UV Spectrophotometry Phenol Phosphoric acid UV absorption peak UV + zero order light atomic spectroscopy ultraviolet Optical rotation and UV absorption UV absorbance factor Optimal absorbance in photometry UV Spectroscopy and UV Spectrophotometry Reflects UV-Vis Visible Spectroscopy and UV Spectroscopy Ultraviolet light UV Vis Photophotometer UV spectroscopic cuvette UV absorption equipment l9 UV-Vis range UV spectroscopic index UV visible light technology Identification by UV Spectrophotometry Absorbance by UV Spectrophotometry UV spectral intensity Chloroform, UV spectrophotometry UV spectrophotometry in oil Determination of absorption peaks by UV spectrophotometer UV-Vis peak UV Spectrophotometric Solvent UV absorbing extraction solvent Atomic Absorption and UV Spectrophotometers UV Absorption Spectrophotometer and Atomic Absorption Spectrophotometer Salt UV absorption UV-UV absorption spectrum of the solution UV spectrophotometer and UV absorption spectrum UV-Vis Extinction Spectroscopy UV absorber absorption spectrum UV-Vis absorption spectra together Infrared Ultraviolet Atomic Absorption Metal UV absorption Chloroform UV absorption UV absorption of salt Alumina UV absorption UV spectrophotometry for metals UV spectroscopic parameters UV pool How to test UV absorption spectrum t6 UV-Vis spectrophotometry UV spectrophotometric solution method UV Absorptiometry UV absorption peak of hcl UV absorption peaks of manganese ions UV absorption peak of carbon UV photometer absorption peak The 00 peak of the UV-Vis absorption spectrum UV Vis Spectroscopy and UV Spectrophotometer UV and Atomic Spectrophotometers UV spectrophotometric test content UV Vis Spectrophotometry Series Gold ion UV spectrum Inorganic Compound UV Absorption Spectrum UV Absorption Spectrum UV absorption capacity Particle Size UV Absorption Molecular UV Rare Earth UV Spectrophotometry optical visibility Urea UV spectrophotometry Test Triple UV Spectrophotometry Phenanthrene UV UV spectrophotometric test content Usual UV-Vis absorption Luminous pass UV spectroscopic application Atomic Absorption Spectrophotometer and UV Determination of Absorbance by UV Spectrophotometry UV-UV-Vis spectrophotometry and UV-Vis Absorption photometry includes What is used for UV-Vis absorption spectroscopy? UV Spectrophotometric Range UV-Vis Absorption Spectroscopy using UV photometry UV absorption method Absorption peaks for UV-visible light What is the concentration of UV absorption spectrum? Cobalt Visible Absorption Spectrum Qualitative UV spectrophotometry UV-Vis spectrophotometry in How about UV-Vis Absorption Spectroscopy cod ultraviolet spectrophotometry Flame Atomic Spectrophotometer and UV Spectrophotometer UV absorption peak intensity Quartz Absorption Cell UV Spectrophotometry UV absorbance test method UV absorption to visible by UV-Vis Spectroscopy UV and visible absorption spectra What is the UV absorbance value UV Spectrophotometry Measurement of UV Gravimetry and UV Spectrophotometry UV Absorption Classification Visible light absorption peak UV Absorption Peaks of Inorganic Anions Biochemical pre-spectral and post-spectral Biochemical pre-spectroscopy and post-spectroscopy Is the UV-Vis spectrophotometer calibrated? UV Spectrophotometry Instruments UV spectrophotometer Spectrometers and UV Spectrophotometers hcl UV absorption Overall UV Absorption visibility optics 35 in the UV-Vis absorption spectrum Affects UV absorbance UV spectrophotometer structure Absorbance UV Absorption peak instrument UV-Vis Instruments UV spectrophotometryfe UV Spectrophotometer and Atomic Spectroscopy Absorption Spectrum of UV-Vis UV visible light test UV photometry Ultraviolet-Visible Spectroscopic Determination Method Iron UV absorption peak Ammonium ion UV absorption UV spectrophotometry oil in water Concentration of UV absorption Fluorescence spectrophotometry UV spectrophotometry Molecules absorb UV light Fluorescence and UV Spectrophotometers In the visible absorption spectrum UV-Vis Absorption Spectrum UV Spectroscopy and UV Absorption UV Photometer Atomic UV Spectrum Absorbance Range What is the UV-Vis absorption spectrum? UV-Vis Absorption Peak General steps of UV spectrophotometry UV Spectroscopy UV Vis Spectrophotometer Why UV-Vis absorption spectroscopy is usually UV spectrophotometry optical visibility Particle size by UV spectroscopy UV-Vis absorption spectrum conjugated multi UV-Vis Absorption Spectrum Conjugation Branching degree UV method What is UV-Vis Absorption Spectroscopy Determination method of ultraviolet-visible spectrophotometer Spectrophotometer and UV Spectroscopy Ultraviolet Spectroscopy of Iron Ions In UV-Vis spectroscopy Why is the UV-Vis absorption spectrum usually very Principle of UV photometry Tin UV absorption peak Test UV Absorption Spectrum Why UV-Vis Absorption Spectra Are Usually Rare Molecular spectroscopy UV In the UV-Vis spectrophotometric assay The UV absorption peak of ferric chloride Calcium by UV spectrophotometry GBT9721 GB/T 9721-1988 GB/T 9721-2006 UV spectrometer and UV spectrophotometer Sodium ion UV absorption peak UV absorber UV9 UV-Vis spectrophotometry The difference between visible light and ultraviolet light for measuring plant physiology Differential UV-Vis Absorption Spectroscopy Absorption of UV Light by Fiber Optic Materials Dissolution UV absorbance requirements Similarities and differences between fluorescence spectrophotometer and UV-visible spectrophotometer The difference between atomic absorption spectrophotometry and UV-visible spectrophotometry Principle of UV differential absorption method Characteristics and instrument composition of UV spectrophotometry Indicators detected by UV spectrophotometry UV spectrophotometry detection limit UV spectrophotometer to measure chloride ions Absorbance range of UV spectrophotometer UV spectrophotometry is negative UV photometer absorbance is negative Content determination by UV-visible spectrophotometry UV-visible spectrophotometry to identify Yin Bupleurum UV-visible spectrophotometry absorption spectrum Characteristics and instrument composition of UV-visible spectrophotometry UV-visible light photometry instrument composition Thermo Evolution 201 UV-Visible Spectrophotometer The difference between single light and double light of UV UV spectrophotometer UV spectrophotometer absorbance value Electron beams and wavelengths of visible light Hydrogen peroxide UV absorption spectrum Polyethylene glycol UV-visible absorption peak Determination of metal ion concentration using UV spectrophotometer Applicable conditions for UV spectrophotometry Application scope of UV-visible spectrophotometry Absorption coefficient of UV-visible light photometer UV-visible absorption spectroscopy for RNA detection Two peaks in UV-visible absorption spectrum The similarities between UV absorption and infrared absorption spectra Methods that can determine protein molecular weight include UV spectrophotometry Characteristics and scope of application of UV-visible spectrophotometry General principles for content determination by UV-visible spectrophotometry UV-visible spectroscopy to study the optical properties of nanoparticles What Atomic Absorption Spectrophotometry and UV-Vis Absorption Spectrophotometry Have in Common Nickel oxide UV absorption spectrum Advantages and Disadvantages of UV Spectrophotometry Chemical reagents can be divided into Fiber optic spectrometers and UV spectrophotometers Chromium UV absorption light detection absorption range Measure the absorbance of the solution using a UV spectrophotometer UV absorption sample preparation The difference between fluorescence spectrophotometer and UV spectrophotometer Absorption phenomena of fluorescence, phosphorescence and chemiluminescence The difference between fluorescence and UV-visible absorption spectra UV-visible absorption photostability analysis UV absorption concentration measurement UV absorption spectrum and absorption coefficient Determination of pka by UV spectrophotometry Hexavalent Chromium UV Spectrophotometry UV Spectroscopy Normalized Absorption UV absorber test method Requirements for absorbance measurement using UV-visible spectrophotometry standard curve UV-visible absorbance standard curve UV-visible absorbance Chinese Pharmacopoeia method Validation of UV spectrophotometer analysis methods Principles and methods of visible spectrophotometry UV spectrophotometry method validation Method to find band gap width in UV absorption spectrum UV spectrophotometric method detection limit acceptance Principle of UV-visible absorption photometry method Total nitrogen measurement method visible light ultraviolet UV spectrophotometry testing methodology How to do methodological verification of UV spectrophotometer General rules for analytical methods of ultraviolet and visible absorption spectroscopy Limitation requirements for method validation using UV spectrophotometers UV spectrophotometry methodology validation requirements National standard method for analyzing metallic elements using ultraviolet-visible spectrophotometry UV absorbance test method UV spectrophotometer method validation UV spectrophotometric standard curve of phosgene National standard UV absorbance Lithium detection method UV spectrophotometry UV spectrophotometry methodology validation Method sources for sodium reagent spectrophotometry Standard absorbance value UV-visible single-component quantitative method UV absorbance method validation Determination of nitrate radicals by UV-visible absorption spectrometry UV-visible spectrophotometry method validation Disadvantages of UV spectrophotometry method UV-visible spectrophotometry method UV spectrophotometer output data method Medical device testing UV absorbance Absorbance solvent inspection method General rules for UV-visible absorption spectroscopy analysis methods Visible light optical materials UV-visible spectrophotometer standard absorption cell Visible spectrophotometry standard curve Visible spectrophotometer usage steps UV-visible spectrophotometric scoring Cobalt UV spectrophotometric detection method UV standard curve absorbance range UV spectrophotometer method validation UV spectrophotometry methodology validation limits gb/t 9721 UV-visible spectrophotometer measurement method UV absorbance kinetics test method gb9721 gb/t9721-2017 UV absorbance detection UV absorber test method Ultraviolet and visible light spectroscopy experimental methods gb 9721 gbt9721 UV-visible light method validation Treatment methods for UV-visible absorption include UV absorbance method creation UV-Visible Photometric Identification Method gbt/t9721 Identification by UV spectrophotometry UV spectrophotometry method error gbt9721-2006 UV absorbance standard solution

《GB/T 9721-1988化学试剂分子吸收分光光度法通则（紫外和可见光部分）》由TC63（全国化学标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。

Scope

This standard specifies the instrument requirements and measurement methods for chemical reagent molecular absorption spectrophotometry (ultraviolet and visible light parts). This standard applies to the determination of impurity content in inorganic chemical reagents and the qualitative and quantitative analysis of organic chemical reagents, indicators and specific reagents with wavelengths between 200 and 850 nm.

More samples: NB/T 47013.2-2015 JJG 21-2008 JGJ 94-2008

Sample only — not a preview of GB/T 9721-1988

Loading PDF document...

Error loading PDF. Please make sure the file is valid and try again.

We also recommend

GB 6851-2008 in English

pH primary reagent - General rules for certification
2008-06-18
GB/T 33087-2016 in English

Ultra pure water for instrumental analysis specification and test methods
2016-10-13
GB/T 23942-2009 in English

Chemical reagent—General rules for inductively coupled plasma atomic emission spectrometry
2009-06-02
GB/T 3914-2008 in English

Chemical reagent - The general rules of anodic stripping voltammetry
2008-05-15
GB/T 35496-2017 in English

Chemical reagent―General method for the determination of nitrate
2017-12-29
GB/T 37885-2019 in English

Chemical reagent—Classification
2019-08-30
GB/T 9721-2006 in English

Chemical reagent - General rules for the molecular absorption spectrophotometry (ultraviolet and visible)
2006-09-01
GB/T 605-2006 in English

Chemical reagent - General method for the measurement of colour
2006-11-03
GB/T 10726-2007 in English

Chemical reagent—General method for the determination of metals by solvent extraction followed by AAS
2007-12-18