
Toxic Substances in Urine
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SRM 2668 Toxic Elements in Frozen Human Urine 冷冻人尿液中的有毒元素标准物质 10 vials x 1.5 mL
SRM 2669 Arsenic Species in Frozen Human Urine 冷冻人尿液中的砷形态标准物质 10 vials x 1.5 mL
SRM 2670a Toxic Elements in Urine (Freeze-Dried) 尿液中有毒元素标准物质(冻干) set (4) Toxic Substances in Urine
SRM 3668 Mercury, Perchlorate, and Iodide in Frozen Human Urine 冷冻人尿液中的汞、高氯酸盐和碘化物标准物质 10 vials x 1.5 mL
SRM 3669 Arsenic Species in Frozen Human Urine (Elevated Levels) 冷冻人尿液中的砷标准物质(含量升高) 5 vials x 1.5 mL