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

性能检测溶液, Performance Check Solution,Varied conc. in MtBE

除草剂中甲基衍生物混标, Regulated Herbicide Methyl Derivatives Mix,Varied conc. in MtBE

EPA分析方法521 亚硝酸胺混标(7组分), EPA Method 521 Analyte Stock Solution,200 μg/mL in methylene chloride

EPA方法524.3 内标, EPA Method 524.3 Internal Standard,2.0 mg/mL in Methanol