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

亚老哥尔 1260, Aroclor 1260 Stock solution,5.0 mg/mL in MeOH

15种有机氯混标, 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

实验室甲基衍生物性能检测溶液, Laboratory Performance Check Methyl Derivatives,Varied conc. in MtBE

非衍生的氯化酸, Underivatized Chlorinated Acids,Varied conc. in MeOH

16组分氯酸中甲基衍生物, Methyl Deriv. of Chlorinated Acids,1000 μg/mL in MtBE

18组分EPA 混标, EPA Method 524.3,2.0 mg/mL in Methanol

p-Terphenyl-d14,500 μg/mL in Dichloromethane

氘代三联苯

527方法 混标 五组分, Method 527 PBDE Standard,Isooctane:Ethyl acetate 80:20