Mass spectrum is 2 more than molecular weight

Mass spectrum is 2 more than molecular weight, Total:147 items.

The international standard classification for "Mass spectrum is 2 more than molecular weight" includes: Processes in the food industry , Electronic components in general , Metrology and measurement. Physical phenomena (Vocabularies) , Chemical analysis , Chemical analysis of metals , Iron ores , Testing of metals , Fertilizers , Textiles in general , Farming and forestry in general , Aluminium and aluminium alloys , Protection against crime .

The Chinese standard classification for "Mass spectrum is 2 more than molecular weight" includes: Food sanitation , Electronic element in general , Basic standards and general methods , Basic standards and general methods , Semimetal and semiconductor material analysis method , Iron ore , Basic standards and general methods on chemical fertilizers , Basic standards and general methods , Cash crop in general , Light metals and their alloys analysis method , Crime judging technology .

Professional Standard - Commodity Inspection

SN/T 2624-2010 Determination of Basic Veterinary Drugs Residues in Food of Animal Origin for Import and Export - HPLC-MS/MS Method
SN/T 3155-2012 Determination of multi-veterinary drugs residues in pork,shrimp and honey for export-LC-MS/MS method
SN/T 3467.1-2013 Determination of polychlorinated naphthalenes in electrical and electronic products-Gas chromatorgaphy-mass spectrometry
SN/T 1753-2016 Determination of thiophanate-methyl ,thiabendazole, carbendazim and2-aminobenzimidazole residues in concentrated juices for export-LC-MS/MS method
SN/T 2593.2-2010 Determination of polycyclic aromatic hydrocarbons in electrical and electronic equipment—Part 2:Gas chromatography-mass spectrometry
SN/T 1927-2007 Determination of cyadox residues in aquatic products for import and export - LC-MS/MS method
SN/T 2005.5-2006 Determination of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electromic equipment. Part 5: HPLC/MS-MS method
SN/T 2576-2010 Determination of Lincosamides Residues in Royal Jelly for Import and Export - LC-MS/MS
SN/T 0500-2022 Determination of dodine residue in fruits for export LC-MS/MS Method
SN/T 5449-2022 Determination of meptyldinocap residues in Plant-origin foodstuffs for export - LC-MS/MS
SN/T 2217-2008 Determination of barbiturates residues in food of animal origin for import and export—HPLC-MS/MS method
SN/T 3541-2013 Determination for multiple ether herbicides sesidues in foods for export-GC-MS/NCI method
SN/T 2005.2-2005 Determination of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products - Part 1: Gas chromatography - mass spectrometry

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 24582-2023 Test method for measuring surface metal impurity content of polycrystalline silicon—Acid extraction-inductively coupled plasma mass spectrometry method
GB/T 37049-2018 Test method for the content of metal impurity in electronic grade polysilicon—Inductively coupled-plasma mass spectrometry method
GB/T 40129-2021 Surface chemical analysis—Secondary ion mass spectrometry—Calibration of the mass scale for a time-of-flight secondary ion mass spectrometer
GB/T 29784.2-2013 Determination of polycyclic aromatic hydrocarbons in electrical and electronic products—Part 2:Gas chromatographic method with mass spectrometric detection
SN/T 4428-2016 Determination of pesticide residues in oil plants and vegetable oils for export-LC-MS/MS method
GB/T 32887-2016 Determination of polychlorinated biphenyls in electrical and electronic products—Gas chromatography-mass spectrometry
GB/T 40031-2021 Determination of medium chain chlorinated paraffins in electrical and electronic products
GB/T 31231-2014 Determination of zinc and lead isotopic ratios in aqueous solution. Multiple-collectors inductively coupled plasma mass spectrometry
GB/T 31126.2-2024 Textiles—Determination of perfluorinated and polyfluorinated compounds—Part 2：Gas chromatography-mass spectrometry method
SN/T 4886-2017 Determination of multi-pesticide residues in dried fruit for export—LC-MS/MS method
GB/T 29858-2013 Standard guidelines for molecular spectroscopy multivariate calibration quantitative analysis
GB/T 32952-2016 Fertilizers - Determination of polycyclic aromatic hydrocarbons - Gas chromatography - mass spectrometry
GB/T 33236-2016 Polycrystalline silicon―Determination of trace elements―Glow discharge mass spectrometry method
GB/T 29784.3-2013 Determination of polycyclic aromatic hydrocarbons in electrical and electronic products—Part 3:Liquid chromatography-mass spectrometry
GB/T 6730.81-2020 Iron ores—Determination of multiple trace elements—Inductively coupled plasma mass spectrometric method

Group Standards of the People's Republic of China

T/CNIA 0141-2022 Determination of metal impurity content in hydrogen for polysilicon production by inductively coupled plasma mass spectrometry
T/SATA 021-2021 Determination of multiclass drug residues in aquatic products by high performance liquid chromatography-mass spectrometry/mass spectrometry
T/GDSES 15-2024 Determination of thallium isotopic ratios in soil and sediment— Multiple-collectors inductively coupled plasma mass spectrometry
T/QAS 081.2-2023 Chemical Analysis of Polymetallic Minerals Part 2: Determination of Niobium and Tantalum Atmospheric Pressure Acid Dissolution - Inductively Coupled Plasma Mass Spectrometry
T/CNIA 0017-2019 Determination of Impurity Content in Chlorosilanes for Polysilicon by Inductively Coupled Plasma Mass Spectrometry
T/NAIA 032-2021 Determination of spinosad and its metabolite residues in wolfberry by liquid chromatography-mass spectrometry/mass spectrometry
T/XZYC 0005-2024 Code of practice for quality classification of Polygomalum cyrlonema Hua
T/GDSES 14-2024 Determination of lead isotopic ratios in soil and sediment—Multiple-collectors inductively coupled plasma mass spectrometry
T/GRM 045-2022 Determination of Uranium content and high-precision isotope ratio (238U/235U) in carbonates by multi-collector inductively coupled plasma mass spectrometry
T/JAASS 101-2023 Determination of polychlorinated biphenyls residues in grains— gas chromatography-mass spectrometry

Professional Standard - Agriculture

JB/T 51220.1-1994 Compound and specific gravity seed cleaning machine product quality classification and other quality indicators
NY/T 3252.2-2018 Industrial hemp seed-Part 2:Seed quality

未注明发布机构

CLSI C64-2021 Quantitative Measurement of Proteins and Peptides by Mass Spectrometry

Professional Standard - Non-ferrous Metal

YS/T 1603.3-2023 Methods for chemical analysis of tungsten-based high specific gravity alloys Part 3: Determination of aluminum, magnesium and calcium contents by inductively coupled plasma mass spectrometry
YS/T 739-2010 Determination of cryolite rate and main components of electrolyte—X-ray fluorescence spectrometric analysis method
YS/T 1603.2-2023 Methods for chemical analysis of tungsten-based high specific gravity alloys Part 2: Determination of iron, nickel and copper contents by inductively coupled plasma atomic emission spectrometry

Professional Standard - Nuclear Industry

EJ/T 842-1994 Zinc Isotope Ratio and Zinc Content Measurement Double Dilution Mass Spectrometry

Professional Standard - Public Safety Standards

GA/T 1613-2019 Forensic sciences—Examination methods for lidocaine,ropivacaine and bupivacaine in biological samples—GC-MS and LC-MS

Yunnan Provincial Standard of the People's Republic of China

DB53/T 501-2013 Inductively Coupled Plasma Mass Spectrometry for Determination of Trichlorosilane Impurity Element Content in Polysilicon

National Health Commission of the People's Republic of China

GB 23200.99-2016 National food safety standard- Determination of multiple carbamate pesticides residues in royal-jelly Liquid chromatography-mass spectrometry
GB 23200.86-2016 National food safety standard―Determination of multiple residue of organochlorine pesticides in milk and dairy products Gas chromatography-mass spectrometry

Jinlin Provincial Food Standard of the People's Republic of China

DBS22/ 005-2012 Determination of Multicomponent Herbicide Residues in Grain by Liquid Chromatography-Tandem Mass Spectrometry

Xinjiang Provincial Standard of the People's Republic of China

DB65/T 3951-2016 Determination of multiple drug residues in water quality by liquid chromatography tandem spectrometry

Zhejiang Provincial Standard of the People's Republic of China

DB33/T 2411-2021 Gas Chromatography-Mass Spectrometry for the Determination of Herbicide and Pesticide Multicomponent Residues in Fishery Environment

Anhui Provincial Standard of the People's Republic of China

DB34/T 2994-2017 Determination of 18 Polycyclic Aromatic Hydrocarbons in Carbon Black by Gas Chromatography-Mass Spectrometry

YU-JUS

JUS C.A1.546-1990 Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Determi- natlon of chromium In ctmtents from 0,01 to 2 % (m/m)

NL-NEN

NEN-ISO 7627-6:1993 Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Part 6: Determination of chromium in contents from 0,01 to 2 % (m/m) (ISO 7627-6:1985)
NEN-ISO 7627-5:1993 Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Part 5: Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (m/m) (ISO 7627-5:1983)
NEN-ISO 7627-4:1993 Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Part 4: Determination of molybdenum, titanium and vanadium in contents from 0,01 to 0,5 % (m/m) (ISO 7627-4:1983)
NEN-ISO 7627-3:1993 Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Part 3: Determination of cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m) (ISO 7627-3:1983)

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 23812:2016 Surface chemical analysis -- Secondary-ion mass spectrometry -- Method for depth calibration for silicon using multiple delta-layer reference materials
BH GSO ISO 13084:2016 Surface chemical analysis -- Secondary-ion mass spectrometry -- Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer
BH GSO ISO 18114:2016 Surface chemical analysis -- Secondary-ion mass spectrometry -- Determination of relative sensitivity factors from ion-implanted reference materials
BH GSO ISO 13876:2017 Soil quality -- Determination of polychlorinated biphenyls (PCB) by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 23812:2013 Surface chemical analysis -- Secondary-ion mass spectrometry -- Method for depth calibration for silicon using multiple delta-layer reference materials
OS GSO ISO 13084:2013 Surface chemical analysis -- Secondary-ion mass spectrometry -- Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer
OS GSO ISO 13876:2015 Soil quality -- Determination of polychlorinated biphenyls (PCB) by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)

British Standards Institution (BSI)

BS DD ENV 12142:1997 Method for determination of stable hydrogen isotope ratio ( 2H/ 1H) of water from fruit juices, using isotope ratio mass spectrometry
BS DD ENV 12140:1997 Method for determination of stable carbon isotope ratio ( 1 3C/ 1 2C) of sugars from fruit juices, using isotope ratio mass spectrometry
BS DD ENV 12141:1997 Method for determination of stable oxygen isotope ratio ( 1 8O/ 1 6O) of water from fruit juices, using isotope ratio mass spectrometry
BS ISO 16564:2004 Rubber, raw natural - Determination of average molecular mass and molecular-mass distribution by size exclusion chromatography (SEC)
BS ISO 13084:2018 Surface chemical analysis. Secondary ion mass spectrometry. Calibration of the mass scale for a time-of-flight secondary ion mass spectrometer
BS ISO 13084:2011 Surface chemical analysis. Secondary-ion mass spectrometry. Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer
BS ISO 17858:2007 Water quality - Determination of dioxin-like polychlorinated Biphenyls - Method using gas-chromatography/mass spectrometry
BS ISO 16564:2004(2006) Rubber, raw natural — Determination of averagemolecularmass and molecular - mass distribution by size exclusion chromatography (SEC)
BS ISO 16014-2:2012 Plastics. Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography. Universal calibration method
12/30231385 DC BS ISO 13876. Soil quality. Determination of polychlorinated biphenyls (PCB) by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)
25/30500395 DC BS ISO 13084 Surface chemical analysis — Secondary ion mass spectrometry — Calibration of the mass scale for a time-of-flight secondary ion mass spectrometer
BS ISO 16014-4:2012 Plastics. Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography. High-temperature method
10/30199193 DC BS ISO 13084. Surface chemical analysis. Secondary ion mass spectrometry. Calibration of the mass scale for a time of flight secondary ion mass spectrometer
BS ISO 16014-3:2012 Plastics. Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography. Low-temperature method
BS ISO 11433:1993+A1:2013 Nickel alloys. Determination of titanium content. Diantipyrylmethane molecular absorption spectrometric method
BS EN 15916-2:2010 Copper and copper alloys. Determination of tellurium content. Part 2: Medium tellurium content.Flame atomic absorption spectrometric method (FAAS)

International Organization for Standardization (ISO)

ISO/TS 22933:2022 Surface chemical analysis — Secondary ion mass spectrometry — Method for the measurement of mass resolution in SIMS
ISO 16014-2:2012 Plastics - Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography - Part 2: Universal calibration method
ISO 16014-2:2003 Plastics - Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography - Part 2: Universal calibration method
ISO 16564:2004 Rubber, raw natural - Determination of average molecular mass and molecular-mass distribution by size exclusion chromatography (SEC)
ISO 13084:2011 Surface chemical analysis - Secondary-ion mass spectrometry - Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer
ISO 16014-4:2012 Plastics - Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography - Part 4: High-temperature method
ISO 16014-4:2003 Plastics - Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography - Part 4: High-temperature method
ISO 8478:2017 Optics and photonics - Camera lenses - Measurement of ISO spectral transmittance
ISO 16564:2004/Amd 1:2006 Rubber, raw natural — Determination of average molecular mass and molecular-mass distribution by size exclusion chromatography (SEC) — Amendment 1
ISO 28540:2011 Water quality - Determination of 16 polycyclic aromatic hydrocarbons (PAH) in water - Method using gas chromatography with mass spectrometric detection (GC-MS)
ISO 17858:2007 Water quality - Determination of dioxin-like polychlorinated biphenyls - Method using gas chromatography/mass spectrometry

Gosstandart of Russia

GOST R 51458-1999 Cheese and processed cheese products. Determination of mass percent of total phosphorus. Molecular absorption spectrometric method
GOST R 53101-2008 Medical remedies for veterinary use, feed and feed additives. Detection of mass fraction of arsenic by atom absorbtion spectrometric method
GOST R 57061-2016 Copper. Measurement of impurities mass fraction in copper by an inductively coupled plasma mass spectrometry method
GOST 34248-2017 Copper and polymetallic ores. Measurement of copper and impurities weight fraction by an inductively coupled plasma atomic emission spectrometry method
GOST R 53351-2009 Medical remedies for animals, feed and feed additives. Detection of mass fraction of selenium by atom absorbtion spectrometric method
GOST R 53100-2008 Medical remedies for veterinary use, feed and feed additives. Detection of mass fraction of cadmium and lead by atom absorbtion spectrometric method
GOST R 57060-2016 Copper. Measurement of impurities mass fraction in copper by an inductively coupled plasma atomic emission spectrometry method
GOST R 53352-2009 Medical remedies for animals, feed and feed additives. Detection of mass fraction of mercury by atom absorbtion spectrometric method

Association Francaise de Normalisation

NF ISO 23812:2009 Surface Chemical Analysis - Secondary Ion Mass Spectrometry - Method for Depth Calibration for Silicon Using Multiple Delta Layer Reference Materials
NF X43-275:2002 Air quality - Air in workplaces - Determination of elements present in the air in workplaces by atomic spectrometry
NF EN 26777:1993 Water quality - Nitrite dosage - Molecular absorption spectrometry method
NF ISO 18287:2006 Soil quality - Determination of polycyclic aromatic hydrocarbons (PAHs) - Gas chromatography method with mass spectrometry detection (GC-MS)
NF EN ISO 17852:2008 Water quality - Mercury dosage - Atomic fluorescence spectrometry method
NF EN 1233:1996 Water quality - Chromium dosage - Atomic absorption spectrometry methods
NF X31-170*NF ISO 18287:2006 Soil quality - Determination of polycyclic aromatic hydrocarbons (PAH) - Gas chromatographic method with mass spectrometric detection (CG-MS).

CU-NC

NC 26-119-4-1986 Drugs. "Bisacodilo" Tablets Quality Specifications

TH-TISI

TIS 2250.2-2005 Plastics.determination of average molecular mass and molecular mass distribution of polymers using size.exclusion chromatography.part 2: universal calibration method
TIS 2250.4-2005 Plastics.determination of average molecular mass and molecular mass distribution of polymers using size.exclusion chromatography.part 4: high.temperature method
TIS 2250.3-2005 Plastics.determination of average molecular mass and molecular mass distribution of polymers using size.exclusion chromatography.part 3: low.temperature method
TIS 2250.1-2005 Plastics.determination of average molecular mass and molecular mass distribution of polymers using size.exclusion chromatography.part 1: general principles

Japanese Industrial Standards Committee (JISC)

JIS K 7252-2:2016 Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 2: Universal calibration method
JIS K 7252-2:2008 Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 2: Universal calibration method
JIS K 0157:2021 Surface chemical analysis -- Secondary ion mass spectrometry -- Calibration of the mass scale for a time-of-flight secondary ion mass spectrometer
JIS K 7252-3:2008 Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 3: Low-temperature method
JIS K 7252-4:2008 Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature method
JIS K 7252-3:2016 Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 3: Low-temperature method

Korean Agency for Technology and Standards (KATS)

KS I ISO 18287-2018(2024) Soil quality — Determination of polycyclic aromatic hydrocarbons(PAH) — Gas chromatographic method with mass spectrometric detection(GC-MS)
KS M ISO 16564:2007 Rubber, raw natural－Determination of average molecular mass and molecular－mass distribution by size exclusion chromatography(SEC)
KS M ISO 16564-2007(2017) Rubber, raw natural－Determination of average molecular mass and molecular－mass distribution by size exclusion chromatography(SEC)
KS M ISO 16564-2007(2022) Rubber, raw natural－Determination of average molecular mass and molecular－mass distribution by size exclusion chromatography(SEC)
KS D ISO 7627-6-2022 Hardmetals － Chemical analysis by flame atomic absorption spectrometry － Part 6: Determination of chromium in contents from 0.01 to 2 % (mass fraction)
KS D ISO 7627-6-2012(2022) Hardmetals－Chemical analysis by flame atomic absorption spectrometry－Part 6：Determination of chromium in contents from 0.01 to 2 % (mass fraction)
KS D ISO 7627-6-2012(2017) Hardmetals－Chemical analysis by flame atomic absorption spectrometry－Part 6：Determination of chromium in contents from 0.01 to 2 % (mass fraction)
KS I ISO 18287-2018 Soil quality — Determination of polycyclic aromatic hydrocarbons(PAH) — Gas chromatographic method with mass spectrometric detection(GC-MS)
KS I ISO 18287:2018 Soil quality — Determination of polycyclic aromatic hydrocarbons(PAH) — Gas chromatographic method with mass spectrometric detection(GC-MS)
KS D ISO 7627-2-2022 Hardmetals－Chemical analysis by flame atomic absorption spectrometry－Part 2：Determination of calcium, potassium, magnesium and sodium in contents from 0.001 % to 0.02 % (mass fraction)
KS C 2375-2006(2016) Analytical method of polychlorinated biphenyls(PCBs)by gas chromatography peak pattern comparison
KS D ISO 7627-2-2012(2017) Hardmetals － Chemical analysis by flame atomic absorption spectrometry － Part 2: Determination of calcium, potassium, magnesium and sodium in contents from 0.001 % to 0.02 % (mass fraction)
KS C 2375-2021 Analytical method of polychlorinated biphenyls(PCBs)by gas chromatography peak pattern comparison
KS I ISO TS 17379-2-2024 Water quality — Determination of selenium — Part 2: Method using hydride generation atomic absorption spectrometry (HG-AAS)
KS D ISO 7627-2-2012(2022) Hardmetals－Chemical analysis by flame atomic absorption spectrometry－Part 2：Determination of calcium, potassium, magnesium and sodium in contents from 0.001 % to 0.02 % (mass fraction)
KS I ISO 18287:2007 Soil quality－Determination of polycyclic aromatic hydrocarbons(PAH)－ Gas chromatographic method with mass spectrometric detection(GC－MS)

GCC Standardization Organization

GSO ISO 13084:2013 Surface chemical analysis -- Secondary-ion mass spectrometry -- Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer
GSO ISO 18287:2013 Soil quality -- Determination of polycyclic aromatic hydrocarbons (PAH) -- Gas chromatographic method with mass spectrometric detection (GC-MS)
GSO ISO 13876:2015 Soil quality -- Determination of polychlorinated biphenyls (PCB) by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)
GSO ISO 10927:2013 Plastics - Determination of the molecular mass and molecular mass distribution of polymer species by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS)

German Institute for Standardization

DIN ISO 18287:2006-05 Soil quality - Determination of polycyclic aromatic hydrocarbons (PAH) - Gas chromatographic method with mass spectrometric detection (GC-MS)
DIN ISO 18287 E:2004-01 Soil quality - Determination of polycyclic aromatic hydrocarbons (PAH) - Gas chromatographic method with mass spectrometric detection (GC-MS)

Swedish Institute for Standards

SS-EN 12393-2:2013 Foods of plant origin - Multiresidue methods for the determination of pesticide residues by GC or LC-MS/MS - Part 2: Methods for extraction and clean-up
SS-EN ISO 22125-2:2019 Water quality - Technetium-99 - Part 2: Test method using inductively coupled plasma mass spectrometry (ICP-MS) (ISO 22125-2:2019)

Danish Standards Foundation

DANSK DS/ISO 18287:2006 Soil quality - Determination of polycyclic aromatic hydrocarbons (PAH) - Gas chromatographic method with mass spectrometric detection (GC-MS)
DANSK DS/ISO 13876:2013 Soil quality - Determination of polychlorinated biphenyls (PCB) by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)
DS/ISO 18287:2007 Soil quality - Determination of polycyclic aromatic hydrocarbons (PAH) - Gas chromatographic method with mass spectrometric detection (GC-MS)

International Commission on Illumination (CIE)

CIE 076-1988 Intercomparison on measurement of (total) spectral radiance factor of luminescent specimens

American Society for Testing and Materials (ASTM)

ASTM E244-80(1995) Test Method for Atom Percent Fission in Uranium and Plutonium Fuel (Mass Spectrometric Method) (Withdrawn 2001)

Others: Mass Spectrometry Molecular Weight Multi 2,tof mass spectrum is 2 more than molecular weight,Mass spectrum is 2 more than molecular weight