Determination of Trace Elements Hg and Rh in Gelatin by Inductively Coupled Plasma Emission Spectrometry ——Applying MSF Model to Improve the Precision and Detection Limit
DU Bao-an1, YANG Yu-hua2, LI Zheng-ping1
1. Chemistry and Environment Science Institute of Hebei University, Baoding 071002, China 2. Applied Mathematic Department, Electric Power University of North China, Baoding 071003, China
Abstract：Using ICP-AES, the method was developed to quantitatively determine the trace elements Hg and Rh in gelatin for the first time. The unknown samplers were processed with the wet digestion method. Multiple trace elements in gelatin could be quantitatively determined by ICP-AES at the same time. Applying the MSF model, the method to correct the spectral interference and the background was discussed. The result’s precision and detection limit could be greatly improved by MSF model. The results of the experiment showed that the method features high accuracy, rapidity, high performance and a wide linear dynamic range, and the results were very satisfactory.
Key words：Inductively coupled plasma atomic emission spectrometry (ICP-AES);Gelatin;Trace element;MSF model
杜保安1，杨玉华2，李正平1. 电感耦合等离子体发射光谱法定量测试明胶中的微量金属元素Hg和Rh——应用MSF模型改进Hg结果的精密度和检测限[J]. 光谱学与光谱分析, 2006, 26(01): 140-143.
DU Bao-an1, YANG Yu-hua2, LI Zheng-ping1 . Determination of Trace Elements Hg and Rh in Gelatin by Inductively Coupled Plasma Emission Spectrometry ——Applying MSF Model to Improve the Precision and Detection Limit. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(01): 140-143.
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