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- Title
有机溶剂溶解法结合电感耦合等离子体发射光谱 法直接测定软胶囊剂型保健食品中的钙和铁.
- Authors
陈 双; 朱晨华; 谭亚军; 周 舟; 李 莹
- Abstract
Objective To establish a method of the determination of calcium and iron in soft capsules health food by inductively coupled plasma optical emission spectrometry (ICP-OES). Methods After the health food in the form of soft capsules was dissolved in the mixed solution of water, nitric acid and dimethyl sulfoxide, the content of calcium and iron in the food were directly determined by inductively coupled plasma atomic emission spectrometry. Results The limits of detection and limits of quantitation of the calcium method were 3 mg/kg and 9 mg/kg, respectively, the recoveries of calcium were 92.2%‒96.7% and the relative standard deviations (RSDs) were 3.2%‒8.8%. The limits of detection and limits of quantitation of the iron method were 0.6 mg/kg and 2 mg/kg, respectively, the recoveries of iron were within the range of 91.8%‒96.7% and RSDs were within the range of 1.8%‒11.9%. This method and GB 5009.268—2016 National food safety standards-Determination of multi-elements in food (the second method) were simultaneously used for the actual sample detection, and the results obtained by the 2 kinds of methods were not significantly different. Conclusion In the pretreatment of the method, the traditional methods such as microwave digestion are not used, the operation is simple, rapid and high in accuracy, and the method can be used for detecting calcium and iron in soft capsule health food.
- Publication
Journal of Food Safety & Quality, 2022, Vol 13, Issue 5, p1560
- ISSN
2095-0381
- Publication type
Article