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甲苯:正己烷(1:1)中20种有机氯混标(适用:EPA508/525/625/8081/8270)
Barban Solution 100ug/ml in Methanol
CUST. STD. 4COMPONENTS 5000 μG/ML IN PEN TANE, 1 ML (MOQ 10 X 1ML) 标准品
Tris(3,5-dimethylphenyl) phosphate-d9
4-Methyl-2-pentanone Solution 100ug/ml in Methanol:Water (90:10)
Decanoic-10,10,10-d3 Acid 标准品
水质标样-硝基苯
燕麦粉 菌落总数 BQC1015147201B
First Standard® 丙酮中丙溴磷溶液,1000μg/mL
GBW(E)100106 苏丹红1号