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铝离子标准溶液
First Standard® 甲醇中11种药物混标溶液,100μg/mL
First Standard® 乙腈中乐果溶液,100μg/mL
First Standard® 胞苷 2',3'-环一磷酸钠盐
N-ethyl-d5-perfluoro-1-octanesulfonamidoacetic acid
邻-苯二甲酸氢钾二级标准品 Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) CertiPUR®
First Standard® 乙腈中U-[13C24]-T-2毒素溶液,25μg/mL
PCL 2-甲基咪唑 分析标准品
First Standard® 乙腈中辛基酚溶液,1000ug/ml
First Standard® 敌螨普异构体-1