废水中的氨基甲酸酯和尿素农药, Carbamates &Urea Pesticides in Waste Water,0.1 mg/mL in Acetonitrile

PCB异构体校准标准品, PCB Isomer Calibration Mix,Varied conc. in Hexane

40种卤苯混合标准品, Halogenated Volatiles Mix,0.2 mg/mL in MeOH

标准品, Water-Soluble Non-Halogenated Volatiles Set

标准品, Method 8020A-ISTD / SS Solution,1.5 mg/mL in MeOH

EPA方法8021B-2种混标, Internal Standards Mix,50 μg/mL in MeOH

EPA方法8021B-2种混标, Surrogate Standards Mix,15 μg/mL in MeOH

EPA方法8040A-19种混标, Method 8040A-Phenols QC Check Std,100 μg/mL in Isopropanol

EPA方法8040-2种混标, 2-Fluorophenol &2,4,6-Tribromophenol,2.0 mg/mL in Isopropanol

2,4-Dibromophenol ,16 μg/mL in Isopropanol

2.4-二溴苯酚