摘要
采用HNO3-HClO4混酸体系溶解奶片,电感耦合等离子体原子发射光谱法测定试样中的钙和镁含量,结果表明非糖果型奶片中钙和镁的含量较高。通过加标回收实验,钙和镁的加标回收率为96.7%~101%,相对标准偏差均小于3%,方法准确、快捷,为研究奶片在儿童成长发育中的作用提供了相关的依据。
The milk tablets were dissolved by HNO 3-HClO 4 mixed acid system,and the contents of calcium and magnesium in the samples were determined by inductively coupled plasma atomic emission spectrometry.The results showed that the calcium and magnesium contents in the sugar-free milk tablets were relatively high.Through standard addition recovery experiments,the recoveries of calcium and magnesium were between 96.7%and 101%,and the relative standard deviations were lower than 3%.The method is accurate and fast,and provides a basis for studying the role of milk tablet in children's growth and development.
作者
李颖
LI Ying(BGRIMM MTC Technology Co.,LTD.,Beijing 102628,China;BGRIMM Technology Group,Beijing 100160,China)
出处
《中国无机分析化学》
CAS
2019年第6期69-72,共4页
Chinese Journal of Inorganic Analytical Chemistry
基金
国家重大科学仪器设备开发重点专项(2016YFF0102500)
关键词
奶片
电感耦合等离子体原子发射光谱法
钙和镁
milk tablets
inductively coupled plasma atomic emission spectrometry
Ca and Mg