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

标准品, EPA Method 530 Standard,1000 μg/mL in Methanol

Methiocarb,0.1 mg/mL in Acetonitrile

灭虫威/甲硫威

氨基甲酯类农药套标(11种), Method 531 (HPLC) Set

标准品, EPA Method 541 Stock Standard,2000 μg/mL in Methanol

Endothall,10 μg/mL in Water

草多索

通过HPLC的550方法—多环芳烃, Method 550-PAH's by HPLC,Varied conc. in AcCN

改进实验室性能检测溶液, Modified Laboratory Performance Check Solution,Varied conc. in Pentane