明胶空心胶囊中5种重金属元素的含量测定

Determination of Five Heavy Metal Elements in Vacant Gelatin Capsule Shells

目的:研究明胶空心胶囊中铬、铅、镉、铜、锌5种重金属含量。方法:采用石墨炉原子吸收法测定明胶空心胶囊中铬、铅和镉的含量,火焰原子吸收法测定铜和锌的含量。结果:明胶空心胶囊中含铬、铅、镉、铜、锌最高分别为1.850,0.404,0.019,6.295,5.839 mg·kg-1。结论:该方法为明胶空心胶囊中铬、铅、镉、铜、锌的含量测定提供了可靠的检测方法,为其质量标准的制定提供了科学依据。

Objective：To determine the contents of 5 heavy mental elements , Cr, Pb, Cd, Cu and Zn, in vacant gelatin capsule shells.Methods：Graphite furnace atomic absorption spectrometry was used to determine Cr , Pb and Cd, and flame atomic absorption spectrometry was used to determine Cu and Zn .Results： The vacant gelatin capsule shells contained Cr , Pb, Cd, Cu and Zn up to 1.850, 0.404, 0.019, 6.295,5.839 mg· kg-1, respectively.Conclusion：The method can be used for the content determination of Cr, Pb, Cd, Cu and Zn in vacant gelatin capsule shells , which provides scientific basis for the development of quality standard .