23组分有机氯混标, Chlorinated Pesticide Mix #1,2.5 μg/mL in Hexane

EPA方法8085-14种混标, Organo Phosphorous Pesticide Mix #1,Varied conc. in MtBE

EPA方法8095A10种混标, Explosive Stock Solution A,100 μg/mL in Acetonitrile:Methanol (50:50)

EPA方法8121-22种混标, Chlorinated Hydrocarbons by GC,Varied conc. in Hexane

EPA方法8141A套标, Method 8141-Additions to Method 8140

2,4-DB methyl ester,0.2 mg/mL in Hexane

4-(2,4-二氯苯氧基)丁酸甲酯

标准品, Phenoxy-Herbicide High Level Daily QC,Varied conc. in Isooctane

标准品, Phenoxy-Herbicide Mix-Level 2,Varied conc. in Isooctane

EPA方法8150A-10种混标, Underivatized Chlorinated Herbicides,Varied conc. in MeOH

Dalapon acid,0.2 mg/mL in MeOH

茅草枯