甲醇中10种气态制冷剂混标(符合HJ 1195-2021), Custom Refrigerants Standard @ 100 μg/mL in Methanol

13种定制混标,溶于乙酸乙酯(EPA 525.2), Custom Pesticide Standard @ Varied Conc.in Ethyl acetate

Custom SVOC Standard @ 500 μg/mL in Methanol

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