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24种挥发性有机物混标 标准品
2-Fluorophenol Solution 2000ug/ml in Methanol
Neodymium - 4% HNO3(有证书)
环丙磺酰胺
MCPA methyl ester & MCPP methyl ester 标准品
Fuel Oil #6 Solution 50,000ug/ml in Methylene chloride
γ-十一烷酸内酯(SG) 标准品
o- Iodohippuric Acid
N.N-Diethylamino ethylacrylate (无证书)
葛根农残空白质控样