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

标准品, Surrogate Standard VOA Mix,0.2 mg/mL in MeOH

标准品, Method 5031 GC/FID Internal Standard Mix,5.0 mg/mL in Water

8260 方法挥发性有机物混合标准品(8种), Method 8260 Additions,2.0 mg/mL in MeOH