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GLUTARALDEHYDE-2,4-DINITROPHENYLHYDRAZONE (purity) 标准品
鸡肝粉中的氧氟沙星
杀扑磷-甲噻硫磷
Set of PFB Derivatized Phenols 标准品
Bio Diesel Fuel,certified 标准品
beta-氯氰菊酯
Cocoyl sarcosine
First Standard® 甲醇中4种β-受体激素混标溶液,100μg/mL
1,2,3,4-Tetrachlorodibenzofuran
75% Weathered Mineral Spirits Solution 5000ug/ml in Methylene chloride