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1H,1H,2H,2H-Perfluorooctane sulfonic acid sodium 50 µg/mL in Methanol:Water

2-Diethylaminoethyl hexanoate

Zearalanone 10 µg/mL in Acetonitrile

ALPHA-TERPINENE

N,N＇-1,3-Phenylenedimaleimide

BePure-25465-100mg

粪大肠菌群质控样品，水质粪大肠菌群测定质量控制与人员考核（滤膜法）

三氯甲烷8ug/ml，四氯化碳0.5ug/ml VOC Mix-2 in Methanol

Dimefuron 100 µg/mL in Methanol

Rotundic acid-RM

4-Bromo-2-nitrotoluene

154 155 156 157 158 159 160 161 162 163