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Dimethomorph Solution 100ug/ml in Acetonitrile
十氯联苯(2051-24-3)
异辛烷中偶氮苯和马拉硫磷混合溶液标准物质
Diethylurea symmetrical (无证书)
Hydrogen Sulfide in Nitrogen (Nominal 20 μmol/mol)
First Standard® 甲醇中12种磺胺混标溶液,100μg/mL
PCB No 4 标准品
Demeton S
HUMAN SERUM (cortisol spiked) 标准品
异辛烷中工业氯丹农药溶液