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Washington & Oregon NWTPH-HCID Retention Time Standards Mixture 2500ug/ml in Methylene chloride
磺胺二甲异恶唑/磺胺异恶唑
Hexachloro-1,3-butadiene
丹皮酚 对照品
Imbentin Kit (3 samples, S-4097-100MG, S-4098-100MG, S-4099-100MG)
甲醇中磺胺二甲嘧啶溶液标准物质 中国计量院
Acetamiprid Solution in Acetonitrile
Sulfometuron methyl
#2 Diesel Fuel (Ultra Low Sulfur) 标准品
Dioctyl phosphite (无证书)