共找到 150 条与 气相色谱用对照品 氯苯 相关的标准,共 10

Chemical reagents Gas chromatography reference substance Chlorobenzene

Chemical reagents Gas chromatography reference substance Toluene

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) ≤ 0.0003 6游离氯(Cl),w/% ≤ 0.0001 7三氯甲烷(CHCl3),w/% ≤ 0.1 8四氯化碳(CCl4),w/% ≤ 0.1 9铁(Fe),w/% ≤ 0.0001 10水分(H2O),w/% ≤ 0.05

Chemical reagent — Reference material for gas chromatography — Dichloromethane

Chemical reagents Gas chromatography reference substance chloroform

Chemical reagents Gas chromatography reference substance tetrachloroethylene

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(以 O 计), 12乙醇(CH3CH2OH), 13丙酮(CH3COCH3),

Chemical reagent — Reference material for gas chromatography — Methanol

本文件规定了食品级润滑油中苯、甲苯、氯苯、对二甲苯和邻二甲苯的顶空进样 - 气相色谱 质谱测定方法。 本文件适用于食品级润滑油中含量不低于 0.1 mg/kg 的苯、甲苯、氯苯、对二甲苯和邻二甲苯的 测定。

Determination of benzene, toluene, chlorobenzene, p-xylene and o-xylene in food grade lubricants by headspace gas chromatography-mass spectrometry

Chemical reagents Gas chromatography reference substance acetone

Chemical reagents Gas chromatography reference substance n-octane

Chemical reagents Reference substance for gas chromatography n-heptane

Chemical reagents Gas chromatography reference substance n-butanol

1含量(C3H8O),w /% ≥ 99.90 2密度(20℃),ρ/(g/mL) 0.784~0.786 3蒸发残渣,w /% ≤ 0.001 4与水混合试验 合格 5酸度(以 H+计),b/(mmol/g) ≤ 0.0003 6还原高锰酸钾物质 合格 7易炭化物质 合格 8羰基化合物(以 CO 计),w /% ≤ 0.005 9甲醇(CH3OH),w /% ≤ 0.1 10铁(Fe),w /% ≤ 0.00001 11水分(H2O),w /% ≤ 0.1

Chemical reagent — Reference material for gas chromatography — Isopropanol

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/% ≤ 0.03 6环己烯(C6H10),w/% ≤ 0.05 7易炭化物质 合格 8水分(H2O),w/% ≤ 0.015

Chemical reagent — Reference material for gas chromatography — Cyclohexane

Determination of sodium benzenesulfonyl chloride and sodium p-toluenesulfonyl chloride residues in exported foods by gas chromatography-mass spectrometry/mass spectrometry

Chemical reagents Gas chromatography reference substance n-hexane




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