共找到 150 条与 气相色谱用对照品 二氯甲烷 相关的标准,共 10

1含量(CH2Cl2),w/% ≥ 99.90 2色度/黑曾单位 ≤ 10 3密度(20℃),ρ/(g/mL) 1.320~1.330 4蒸发残渣,w/% ≤ 0.002 5酸度(以 H+计),b/(mmol/g

Chemical reagent — Reference material for gas chromatography — Dichloromethane

Chemical reagents Gas chromatography reference substance chloroform

本标准规定了氯硅烷中甲基二氯硅烷、三甲基氯硅烷、甲基三氯硅烷含量的气相色谱-质谱联用的测定方法。本标准适用于氯硅烷中甲基二氯硅烷、三甲基氯硅烷、甲基三氯硅烷的测定,测定范围均为 0.1mg/kg—10mg/kg

Determination of methyldichlorosilane, trimethylchlorosilane and methyltrichlorosilane in chlorosilanes by gas chromatography mass spectrometry

Determination of ethyldichlorosilane in methylchlorosilane by gas chromatography-mass spectrometry

本标准规定了测定尿中二氯甲烷的气相色谱法。本标准适用于职业接触二氯甲烷人员尿中二氯甲烷浓度的测定

Standard Gas Chromatographic Method for Determination of Dichloromethane in Urine

本标准规定了化妆品中二氯甲烷和1,1,1-三氯乙烷含量的顶空气相色谱测定方法的试剂和材料、仪器和设备、分析步骤、结果计算、回收率与精密度、允许差等内容。 本标准适用于膏霜、乳、液、水类化妆品中二氯甲烷和1,1,1-三氯乙烷含量的测定。 本标准对于二氯甲烷和1,1,1-三氯乙烷的检出限分别为

Determination of restricted dichloromethane and 1,1,1-trichloroethane in cosmetics—Headspace gas chromatography

Chemical reagents Gas chromatography reference substance n-octane

Chemical reagents Reference substance for gas chromatography n-heptane

1含量(C6H12),w/% ≥ 99.90 2密度范围(20℃),ρ/(g/mL) 0.778~0.779 3结晶点,t/℃ ≥ 6.0 4蒸发残渣,w/% ≤ 0.002 5苯(C6H6),w/% 

Chemical reagent — Reference material for gas chromatography — Cyclohexane

Chemical reagents Gas chromatography reference substance n-hexane

Chemical reagents Gas chromatography reference substance Toluene

1含量(CH3OH), 2密度(20℃), 3与水混合试验 合格 4蒸发残渣, 5水分(H2O), 6酸度(以 H+计), 7碱度(以 OH-计), 8易炭化物质 合格 9羰基化合物(以 CO 计), 10还原高锰酸钾物质

Chemical reagent — Reference material for gas chromatography — Methanol

Chemical reagents Gas chromatography reference substance Chlorobenzene

This method is for determining trace chloromethane, chloroethene, and dichloromethane in high purity polymer grade ethylene and propylene gas

Determination of Trace Chloromethane, Chloroethene, and Dichloromethane in Polymer Grade Ethylene and Propylene by Gas Chromatography Mass Spectrometry

La presente norma è la versione ufficiale in lingua inglese della norma europea EN 14573 (edizione ottobre 2004). La norma specifica un metodo

Foodstuffs - Determination of 3- monochloropropane-1,2-diol by GC/MS




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