6-Hydroxy-2,3,3',4,4',5'-hexabromodiphenyl ether

27种有机磷混标(符合HJ 1189—2021)@1000mg/L 丙酮溶液, Custom Pesticide Standard @ 1000 μg/mL in Acetone

Propaquizafop,100 μg/mL in Acetonitrile

甲醇中1000μg/mL的定制有机锡标准, Custom Organotin Standard @ 1000 μg/mL in Methanol

17种多溴联苯混标, Custom PBB Standard @ Varied Conc.in Isooctane

13种醛酮-DNPH衍生物混标,不同浓度溶于乙腈, Custom DNPH Standard@ Varied conc. In Acetonitrile