ICP-MS测定含钨化妆品中的汞含量
Determination of Mercury Content in Cosmetics Containing Tungsten by ICP-MS
DOI: 10.12677/HJCET.2022.126054, PDF,    科研立项经费支持
作者: 石瑞瑞*, 金梦芸, 汪淼峰, 杨 铭, 胡 丹, 廖上富：浙江方圆检测集团股份有限公司，浙江 杭州
关键词: 电感耦合等离子体质谱仪；汞；钨；质谱干扰；Inductively Coupled Plasma Mass Spectrometry； Mercury； Tungsten； Mass Spectrum Interference
摘要: 探究了电感耦合等离子体质谱仪(ICP-MS)测定化妆品中的汞含量时，钨对汞同位素的多原子离子型质谱干扰规律，通过改变微波消解酸体系，选择合适的同位素以及优化仪器参数，建立了可以有效减少干扰的ICP-MS法测定含钨化妆品的汞含量的方法。对该方法的检出限、精密度、回收率做了实验分析，结果表明：汞同位素201Hg和204Hg的检出限分别为0.002 mg/kg和0.001 mg/kg，低中高浓度汞的精密度在3.0%~4.1%之间，低中高浓度汞的加标回收率在90%~95%之间，满足化妆品中汞的测试要求。
Abstract: The interference of tungsten on the polyatomic ion type mass spectrometry of mercury isotopes in cosmetics was investigated when the mercury content in cosmetics was determined by inductively coupled plasma mass spectrometry (ICP-MS). By changing the microwave digestion acid system, selecting appropriate isotopes and optimizing instrument parameters, an ICP-MS method that can effectively reduce interference was established to determine the mercury content in cosmetics containing tungsten. The detection limit, precision and recovery rate of the method were tested and analyzed. The results showed that the detection limits of 201Hg and 204Hg mercury isotopes were 0.002 mg/kg and 0.001 mg/kg, respectively. The precision of low, medium and high concentration mercury was 3.0%~4.1%, and the spiked recovery rate of low, medium and high concentration mercury was 90%~95%, which meet the test requirements of mercury in cosmetics.
文章引用：石瑞瑞, 金梦芸, 汪淼峰, 杨铭, 胡丹, 廖上富. ICP-MS测定含钨化妆品中的汞含量[J]. 化学工程与技术, 2022, 12(6): 417-423. https://doi.org/10.12677/HJCET.2022.126054

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