Fenaminosulf,100 μg/mL in Acetonitrile

二氯甲烷中17种半挥发性有机物定制混标, Custom SVOC Standard @ 500 μg/mL in Dichloromethane

15种硝基苯混标100&1000 ug/mL in Hexane:Toluene (30:70)(硝基苯与邻,间,对硝基甲苯为1000ug/ml), Custom Nitrated Standard @ Varied Conc.in 30% Toluene 70% Hexane