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氟噻虫砜 BePure-22964
8151除草剂混标(11组分) 标准品
13种组分醛/酮-DNPH Stock Standard-13 标准品
甲醇中烯酰吗啉溶液 广电计量
Citric acid, acetyl tributyl ester
苹果汁中的溴氰菊酯质控样 BQC1061121683
10% NH4H2PO4 IN 0.05% HNO3(有证书)
碱性紫3
Acetaldehyde (DNPH Derivative) Solution 1000ug/ml in Methanol:Acetonitrile (80:20)
氟啶草酮溶液,1000ppm