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- Title
微波消解-电感耦合等离子体发射光谱法测定 食品中锡含量的方法研究.
- Authors
蔡展帆; 张佩霞; 章锦涵; 胡文敏; 高 齐; 周忆莲; 林辉焕; 熊 欣; 梁旭霞
- Abstract
Objective To establish a method for the determination of tin in food by microwave digestion-inductively coupled plasma optical emission spectrometry (ICP-OES). Methods The samples were pretreated with 5 mL nitric acid and 1 mL hydrochloric acid before microwave digestion. The samples were driven out of acid at 90 ℃, and then the content of tin in food was determined by ICP-OES with 189.925 nm as the analytical line. Results The linear range of this method was 0.01–5.00 mg/L with correlation coefficient greater than 0.999. The method detection limit was 0.7 mg/kg, the quantification limit was 2.4 mg/kg. The relative standard deviation of the results of multiple matrix samples was less than 5%, and the spike recovery was 100.2%-109.4%. Conclusion The method is simple to operate, with accurate results, high precision, high sensitivity and less interference, and is suitable for the analysis of tin in food.
- Publication
Journal of Food Safety & Quality, 2020, Vol 11, Issue 16, p5391
- ISSN
2095-0381
- Publication type
Article