保健食品中的六价铬测定

详细信息

Determination of Hexavalent Chromium in Health Foods

摘要: 采用碱性溶液稳定并提取保健品中的六价铬，在阴离子色谱柱上进行分离，用ICP-MS对六价铬进行检测。对保健奶粉、营养冲剂、保健饮品等样品进行了试验，线性相关系数大于0.999，精密度RSD<10%，回收率在80％~110％之间，最低检出限为0.2 μg•L^-1。该方法简便快速，具有较强的定性能力。
- 六价铬 /
- IC-ICP-MS /
- 保健食品
Abstract: Hexavalent chromium was extracted from the health foods sample with alkaline solution. The extract was determined by IC-ICP-MS. The parameters of health milk powder, nutritional drink powder and healthy beverage were acquired. The linear correlation coefficient is greater than 0.999, the RSD of precision is less than 10%, the recoveries are in the range of 80%-110%, and the LOQ is 0.2 μg•L^-1. The method is simple, quick and strong qualitative capability.
- hexavalent chromium /
- IC-ICP-MS /
- health foods

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