Determination of nine mineral elements in infant formula milk powder by rapid wet digestion-inductively coupled plasma optical emission spectrosmetry
Objective: This study aimed to provide a rapid and efficient pretreatment method to detect the mineral elements in infant formula milk powder. Methods: Low-temperature rapid wet digestion (digesting temperature was 120 ℃ and digesting time was 90 min) combined with the inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to determine the concentrations of K, Na, Ca, Mg, P, Fe, Zn, Cu, and Mn in infant formula milk powder. Results: The linear correlation coefficients of standard curves for these nine elements were all over 0.999 9. This method was verified by the reference materials in infant formula milk powder, and the detection values of each element were all within the range of their characteristic values. Besides, the spiked recovery rate of elements in a commercial infant milk powder was verified. Its recovery rate was 95.0%~102.0% and the relative standard deviation was within 5%. Conclusion: This method was fast and efficient, which is suitable for the digestion of mineral elements in infant formula milk powder.
Hui, CHEN; Xing-xin, GUO; Jia-li, PENG; Li-ping, TAO; and Hai-zi, WU
"Determination of nine mineral elements in infant formula milk powder by rapid wet digestion-inductively coupled plasma optical emission spectrosmetry,"
Food and Machinery: Vol. 38:
8, Article 14.
Available at: https://www.ifoodmm.cn/journal/vol38/iss8/14
 丁玉龙,于学雷,周峰.奶粉中营养元素检测方法的研究与进展[J].食品安全质量检测学报,2021,12(2):733-739.DING Y L,YU X L,ZHOU F.Progress on the determination method of nutritional elements in milk powder[J].Journal of Food Safety and Quality,2021,12(2):733-739.
 施茜.母乳成分含量及其影响因素[D].苏州:苏州大学,2018:12-13.SHI Q.Breast milk composition and its influencing factors[D].Suzhou:Suzhou University,2018:12-13.
 揭良,苏米亚,贾宏信,等.母乳和婴儿配方奶粉营养研究进展[J].食品工业,2021,42(2):245-247.JIE L,SU M Y,JIA H X,et al.Research progress of nutrition of human milk and formula milk[J].Food Industry,2021,42(2):245-247.
 姜艳喜,华家才,李归浦,等.婴幼儿配方乳粉和特殊医学用途配方食品工艺验证的实施探讨[J].食品安全质量检测学报,2020,11(17):5 843-5 850.JIANG Y X,HUA J C,LI G P,et al.Discussion on process validation of infant formula milk powder and foods for special medical purpose[J].Journal of Food Safety and Quality,2020,11(17):5 843-5 850.
 孔维恒,郭铮蕾,富宏坤,等.取样方法对婴幼儿配方乳粉营养元素分析的影响[J].食品与发酵工业,2022,48(7):246-251.KONG W H,GUO Z L,FU H K,et al.Effect of sampling methods on the analysis of nutritional elementsof infant formula milk powder[J].Food and Fermentation Industries,2022,48(7):246-251.
 刘志楠,王俊英,喻东威,等.乳粉中矿物质检测稳定性分析研究[J].食品安全质量检测学报,2018,9(4):799-802.LIU Z N,WANG J Y,YU D W,et al.Study on the stability detection of mineral in milk powder[J].Journal of Food Safety and Quality,2018,9(4):799-802.
 陈丹瑾,牟光庆,姜铁民,等.乳及乳制品中矿物质元素检测方法的研究进展[J].食品与机械,2015,31(3):246-250.CHEN D J,MU G Q,JIANG T M,et al.Research progress on determination method of mineral elements in milk and dairy products[J].Food & Machinery,2015,31(3):246-250.
 中国营养学会.中国居民膳食营养素参考摄入量(2013 版)[M].北京:中国标准出版社,2014.Chinese Nutrition Society.Dietary Reference Intakes for Chinese(2013)[M].Beijing:Standards press of China,2014.
 应璐,张书芬,程春梅,等.2018年宁波市售婴儿配方乳粉中矿物质元素含量的调查分析[J].食品安全质量检测学报,2018,11(13):4 267-4 272.YING L,ZHANG S F,CHENG C M,et al.Investigation and analysis of mineral elements in infant formula milk powder sold in Ningbo in 2018[J].Journal of Food Safety and Quality,2018,11(13):4 267-4 272.
 胡燕杰.重金属检测前处理方法研究及水产品中重金属含量检测分析[D].杭州:浙江大学,2018:9-12.HU Y J.Study on pre-treatment of heavy metal detection and the heavy matal content analysis in aquatic products[D].Hangzhou:Zhejiang University,2018:9-12.
 龚琦.对电感耦合等离子体发射光谱法中一些问题的认识[J].冶金分析,2018,3(9):26-30.GONG Q.Understanding of some issues about inductively coupled plasma optical emission spectrometry[J].Metallurgical Analysis,2018,38(9):26-30.