HJ/T 196-2005 in English

VALID

Water quality -- Determination of Kjeldahl-nitrogen Gas-phase molecular absorption spectrometry

Issued on:2005-11-09
Implemented on:2006-01-01
File Format:PDF
Delivery:Via email within 1~3 business days

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Standard No:	HJ/T 196-2005
Document status:	VALID
Title in English:	Water quality -- Determination of Kjeldahl-nitrogen Gas-phase molecular absorption spectrometry
Title in Chinese:	水质凯氏氮的测定气相分子吸收光谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2005-11-09
Implemented on:	2006-01-01
ICS Classification:	13.060-Water quality
Chinese Classification:	Z16-Analysis methods for toxic substances in water
Professional Classification:	HJ-Environment
Related Keywords:	water quality molecular absorption spectrometry scopethis standard surface water kjeldahl-nitrogen gas-phase determination
Related Topics:	molecular molecular absorption gas phase molecules nitrogen spectrum hj/t 42 gas phase molecules hj/t 36 hj/t 397 hj/t 40 hj+t+ gas phase molecular absorption spectroscopy hj/t+ spectral standard hj/ t 55 hj/t 223 hj/t 305 gaseous nitrogen hj/t 267 hj/t 270 hj/t 398 GC-MS Precursor Ions vapor phase moisture method hj+t Nitrogen 2005 hj t 327 hj/ t 365 hj/t 66 hj/t 315 hj t 40 hj/t 183 hj/t 289 gaseous molecules hj/t and hj Spectral Nitrogen atomic nitrogen hj/t 277 spectroscopic nitrogen hj t 42 Kjeldahl Nitrogen Spectral Quality of Water gaseous nitrogen Spectrum of Nitrogen nitrogen spectrum Liquid Absorption Spectroscopy liquid phase absorbent nitrogen moisture vapor phase moisture method hj/t 33 hj/t 34 hj/t 282 hj /t 66 hj t195 2005 Gas phase nitrogen tank hj and hj/t hj/t 240 Determination of Total Nitrogen by Gas Phase Molecular Absorption Spectrometry hj/t 367 hj/t 273 gaseous nitrogen hj/t 378 Kjeldahl nitrogen analysis hj and hj/t gaseous nitrogen hj/t 46 nitrogen absorption spectrum hj /t 40 Determination of total nitrogen by mass spectrometry Kjeldahl Nitrogen Nitrogen absorption peak gas phase molecular absorption spectrometry Kay's Molecular Absorption Spectrum Ammonia Nitrogen Atomic Absorption Spectroscopy in Water Quality Spectrum Water Quality Ammonia Nitrogen Nitrogen quantum hj/t200-2005 Mass Spectrometry Molecular Peaks flow analysis Kjeldahl nitrogen hj/t 412 Absorption Spectrum of Ammonia Nitrogen gas absorption spectrum molecular english Gas phase molecular absorption spectrometry and Gas Absorption Spectroscopy Water quality spectrometer Water quality spectrometer UV absorption spectrum of water molecules Absorption Spectrum of Ammonia Nitrogen in Water Hydrogen absorption spectrum Nitrogen for gas phase spectrometer water quality molecular absorption spectrum Nitrogen for gas phase molecular absorption peak hj2005 gas molecule Gas phase determination of moisture gas phase of polymer molecular absorption spectrum Water Quality Measurement by Spectrometry gas absorption spectrum Kjeldahl method molecular phase gas phase absorption gas absorption spectrum Spectroscopic water quality analysis hj/t197-2005 gas phase molecular absorption spectroscopy total nitrogen Water quality nitrogen atmospheric absorption spectrum nitrogen molecule nitrogen molecule nitrogen tank moisture molecules absorb each other hj t 36 HJ T 397 Water Gas Phase Molecular Absorption Spectrometry The principle behind the Kjeldahl method Absorption of Spectrum by Water Ion Sources for Gas Chromatography and Mass Spectrometry Gas Phase Molecular Methods Gas Spectrometry Total Nitrogen Determination Method Gas Chromatography Gas chromatography mass spectrometry water sample Polymer gas phase detection hj t223-2005 Nitrogen in Mass Spectrometry Absorption Spectrum of Hydrogen nitrogen in water gas phase absorption characteristic spectroscopy The absorption peak of each substance Mass absorption peak Determination method of Kjeldahl nitrogen hj+t200+2005 Determination principle of Kjeldahl method hj/t 52 absorption mass spectrometry nitrogen absorption peak hj/t and hj gas phase molecular absorption spectrometry ammonia nitrogen drug absorption phase Nitrogen determination in water hj/t221-2005 hj and hj/t How to measure water quality inorganic nitrogen Gas Absorber Absorption Spectrum of Nitrogen Total Nitrogen Determination Gas Chromatography spectrometer water quality hj/t 358 gas phase molecular absorption spectrometry total nitrogen Mass Spectrometer Nitrogen Kjeldahl Nitrogen Determination Method Determination of gas spectrum Rice Absorption Spectrum local absorption in mobile phase Nitrogen determination gas phase Kjeldahl nitrogen in water Gas Absorption Spectroscopy Absorption Spectra of Pollutants in Water Kjeldahl nitrogen analysis hj t193 2005 hj t197 2005 hj t200-2005 Nitrogen determination method Determination of Ammonia Nitrogen in Water by Gas Phase Molecular Absorption Spectrometry Nitrogen determination principle of Kjeldahl method Determination of Nitrogen by Gas Phase Molecular Absorption Spectrometry Inka quality . Kjeldahl method molecular version Nitrogen relative molecule Absorption Peak Fluorescent Substance Determination of dinitrogen absorption bet molecular spectroscopy Relative mass of nitrogen molecular absorption spectroscopy Gas Absorption Spectroscopy Kjeldahl nitrogen method nitrogen principle Nitrogen relative mass Absorption Spectrum of Nitrogen Molecule Relative Molecule of Nitrogen HJ/T194-2005 Water quality Kjeldahl nitrogen GC-MS Precursor Ions Principle of nitrogen adsorption method Kelaipu liposoluble Gloria Spectrometer Determination of ammonium nitrogen by Kjeldahl method Calculation formula of Kjeldahl nitrogen determination method Advantages and Disadvantages of Kjeldahl Method Water quality gas phase molecular absorption instrument Caleb Kjeldahl nitrogen analyzer recovery rate determination method hj200 meteorological molecule absorption Error Analysis of Kjeldahl Nitrogen Determination Method Advantages of Kjeldahl method The same point in the absorption spectrum Gas Phase Molecular Absorption Spectroscopy Calibration Gas Phase Molecular Absorption Spectroscopy Agriculture Water quality fiber optic spectroscopy Water quality Kjeldahl nitrogen determination method Method for determination of recovery rate of Kjeldahl nitrogen analyzer Long's Nitrogen Meter Gas Phase Molecular Absorption Spectrometer Calibration Validation of ammonia nitrogen method using gas phase molecular absorption spectrometry UV absorption spectrometry water quality Gas Phase Molecular Absorption Calibration Method for measuring absorbance under nitrogen conditions Determination method of nitrogen gas chromatography Water quality nitrogen and phosphorus determination hj/t223-2005 hj/t 365 hj /t 399 hj/t 415 Nitrogen related absorption spectrum Kjeldahl nitrogen determination Acceptance of gas phase mass spectrometer hj /t 267 Determination of nitrogen in water quality Determination of nitrogen in water quality

本标准适用于地表水、水库、湖泊、江河水中凯氏氮的测定，检出限0.020mg/L，测定下限0.100mg/L，测定上限200mg/L。

Scope

This standard is applicable to the determination of Kjeldahl nitrogen in surface water, reservoirs, lakes, and rivers. The detection limit is 0.020 mg/L, the lower limit of determination is 0.100 mg/L, and the upper limit of determination is 200 mg/L.

More samples: QC/T 942-2021 GB 18306-2015 JGJ 94-2008

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