A混标, Method 507-Mix A,1000 μg/mL in MtBE

507方法 混标D, Method 507-Mix D,1000 μg/mL in MtBE

Triphenylphosphate ,5.0 mg/mL in MtBE

磷酸三苯酯

方法508.1——17组分农药混标, Method 508.1 (SDWA) Regulated Pesticide Mix,100 μg/mL in MtBE

17组分氯杀虫剂/除草剂混标, Chlorinated Pesticides/Herbicides,0.5 mg/mL in Ethyl acetate

分解标准品, Decomposition Solution,Varied conc. in MtBE

有机氯混标13组分 (5x1mL套标), Method 508-Chlorinated Pesticides by GC/ECD,1000 μg/mL in MtBE

Ethylene thiourea ,0.1 mg/mL in 0.1% w/v DTT in Ethyl acetate

2-咪唑啉硫酮/乙烯基硫脲

6组分非衍生分析物, Underivatized Analytes,Varied conc. in Methanol

EPA154.4除草剂甲酯混合标准品, Quality Control Sample Methyl Derivatives,Varied conc. in MtBE