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73 2016 3 Journal of Food Safety and Quality Vol. 7 No. 3 Mar. , 2016 6 李俊婕, 于海英, 林钰镓, 李启艳* ( , 250101) 摘 要: 目的 , 6 结果 6 关键词: , 6 方法 , 66 3 6, 0~10 mg/L 91%~105%, 0.5%~1.0%, 6 ; ;6 , , , , 0~1 mg/L 0.8%~1.3% 结论 Simultaneous determination of 6 kinds of elements in pearl powder by inductively coupled plasma optical emission spectrometry LI Jun-Jie, YU Hai-Ying, LIN Yu-Jia, LI Qi-Yan* (Shandong Institute for Food and Drug Control, Jinan 250101, China) ABSTRACT: Objective To establish a method for the simultaneous determination of 6 kinds of elements in pearl powder by inductively coupled plasma optical emission spectrometry, and improve the determination method of pearl powder, so as to provide basis for the quality control of pearl powder. Methods Six kinds of elements such as calcium, sodium, magnesium, iron, strontium and zinc of samples preprocessed by microwave digestion method were detected by inductively coupled plasma emission spectrometry. The recovery experiment by adding standard samples was carried out for 6 kinds of elements at three levels. The precision experiment was carried out by continuous determination for 6 times. Moreover, 6 kinds of the same samples were treated by microwave digestion method and determined for the repeated experiments. Results Calcium, sodium, magnesium and iron had good linear relationships in the range of 0~10 mg/L, and strontium and zinc had good linear relationships in the range of 0~1 mg/L. The recoveries were in the range of 91%~105%, the accuracies were in the range of 0.5%~1.0% and the repeatabilities were in the range of 0.8%~1.3%. Conclusion This method is simple, rapid and accurate, and can be used for the determination of 6 kinds of elements in pearl powder. KEY WORDS: inductively coupled plasma optical emission spectrometry; pearl powder; 6 kinds of elements *通讯作者: , , E-mail:163.com *Corresponding author: LI Qi-Yan, Associate Chief Pharmacist, Shandong Institute for Food and Drug Control, No.2749, the N