性能检测溶液, Performance Check Solution,Varied conc. in MtBE

EPA Method 521 Internal Standard Stock Solution,1000 μg/mL in Methylene chloride

EPA方法521内标储备液-N-亚硝基正丙胺-D14

16组分氯酸中甲基衍生物, Methyl Deriv. of Chlorinated Acids,1000 μg/mL in MtBE

EPA Method 521 Surrogate Standard Stock Solution,1000 μg/mL in Methylene chloride

EPA521储备液(N-亚硝基二甲胺-D6)检测标准品(1000 μg/mL 溶剂为二氯甲烷)

EPA方法524.3, EPA Method 524.3 Surrogate Standard,2.0 mg/mL in Methanol

525方法内标物标准, Method 525-Internal Standard,2.0 mg/mL in CH2Cl2

饮用水中的有机物, Organic Compounds in Drinking Water

12种分析物溶液, Analyte Fortification Solution,Varied conc. in Methanol

EPA529方法-14种硝基苯混标, EPA Method 529 IS Fortification Solution,Ethyl acetate:Acetonitrile 96:4

EPA Method 529 Internal Standard Stock Solution,2.0 mg/mL in Ethyl acetate

EPA方法529内部标准储备溶液