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大米粉中的β-六六六质控样
PUNYW25201218 Kanamycin A Related Compound 2
十四氯间三联苯,35ug/mL于甲苯 标准品
MCPA sodium salt(有证书)
1-己醇 标准品
(-)-Nortrachelogenin 标准品
22966, 3-Methylchrysene (purity) 标准品
Massachusetts/Washington EPH Surrogate Spiking Mixture 2000ug/ml in Acetone
5-Aminoimidazole-4-carboxamide-1-β-D-ribofuranoside
特丁硫磷溶液,1000ppm