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2-Methylquinoxaline (无证书)
2-乙基己基-2,3,4,5-四溴苯甲酸(TBB)标准品
六六六(异构体混合物) 标准品
First Standard® 50种农药及其代谢物混标溶液(GC+LC检测),10μg/mL
Molybdenyl bis(acetylacetonate) (无证书)
BRAN BREAKFAST CEREAL (dietary fibre) 标准品
2-Methyltetrahydrothiophene
First Standard® 丙酮中25种农药混标溶液,100μg/mL
乙醇中灭蝇胺
氰戊菊酯农药标准物质-杀灭菊酯