微波消解-电感耦合等离子体质谱法同时测定山楂汁饮料中20种无机元素  

Simultaneous determination of 20 kinds of inorganic elements in hawthorn juice by microwave digestion-inductively coupled plasma mass spectrometry

作　　者：王继双 董亚蕾[1] 吴迪 王海燕[1] WANG Ji-Shuang;DONG Ya-Lei;WU Di;WANG Hai-Yan(National Institutes for Food and Drug Control,Beijing 100050,China)

机构地区：[1]中国食品药品检定研究院,北京100050

出　　处：《食品安全质量检测学报》2021年第9期3627-3634,共8页Journal of Food Safety and Quality

摘　　要：目的建立微波消解-电感耦合等离子体质谱法同时测定山楂汁饮料中20种无机元素的分析方法。方法用微波消解法对山楂汁饮料样品进行处理,采用电感耦合等离子体质谱法,通过在线添加内标进行校正的方式对样品进行测定,优化前处理方法和仪器参数条件,对方法学进行考察,最后采用该方法测定4批市售山楂汁饮料中20种无机元素的含量。结果该方法在一定线性范围内,线性关系良好,相关系数均大于0.9980,检出限为0.00001~0.07 mg/L,精密度为0.9%~3.1%(n=6),平均回收率在84.6%~107.1%之间。结论该方法灵敏、可靠、便捷,适合山楂汁饮料中多种无机元素的检测。Objective To establish a method for the simultaneous determination of 20 kinds of inorganic elements in hawthorn juice by microwave digestion-inductively coupled plasma mass spectrometry(ICP-MS).Methods The hawthorn juice samples were processed by microwave digestion method,and then determined by ICP-MS with on-line calibration by adding internal standard,the pre-treatment method and the instrument parameters were optimized,the methodology was investigated,and the method was used to determine 20 kinds of inorganic elements in 4 batches of commercially available hawthorn juice beverages.Results This method had good linearity in a certain range.The correlation coefficients were higher than 0.9980,the detection limits were 0.00001-0.07 mg/L,the precisions were in the range of 0.9%-3.1%(n=6),and the recoveries were in the range of 84.6%-107.1%.Conclusion This method is sensitive,reliable and convenient,and is suitable for the determination of various inorganic elements in hawthorn juice beverage.

关 键 词：山楂汁饮料 微波消解 电感耦合等离子体质谱法 无机元素 

分 类 号：O657.63[理学—分析化学] TS255.44[理学—化学]