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二苯胺农药纯度标准物质
美金刚-D6盐酸盐 BePure-23886XM
磺胺脒 (无证书)
灭蚜磷
Mixture #6-Polynuclear Aromatic Hydrocarbons 2000ug/ml in CH2Cl2:Benzene (50:50)
Thiostrepton
p-Dimethylaminoazobenzene Solution 100ug/ml in Methanol
溴化氮氨菲啶氢溴酸盐溶液,100ppm
Cinosulfuron 标准品
Phenol-Mix 17,1000ng/ul 标准品