Custom Pesticide Standard @ 100 μg/mL in Methylene chloride-100%

Perfluoropentanesulfonic acid,2 μg/mL in Methanol

27种有机磷混标(符合HJ 1189�?021)@1000mg/L 丙酮溶液, Custom Pesticide Standard @ 1000 μg/mL in Acetone

挥发性有机物2种替代物(甲苯-D8、对溴氟�?, Custom VOC Standard @ 2000 μg/mL in Acetonitrile

10种挥发性有机物混标,100 ug/mL溶于1,2-二氯乙烷, Custom VOC Standard @100 μg/mL in 1,2-Dichloroethane