董亚蕾,刘 钊,高文超,王海燕,曹 进,丁 宏.微波消解-电感耦合等离子体质谱法同时测定沙棘汁饮料中18种无机元素[J].食品安全质量检测学报,2019,10(1):25-30 |
微波消解-电感耦合等离子体质谱法同时测定沙棘汁饮料中18种无机元素 |
Simultaneous determination of 18 kinds of inorganic elements in sea-buckthorn juice by microwave digestion-inductively coupled plasma mass-spectrometry |
投稿时间:2018-10-16 修订日期:2018-11-30 |
DOI: |
中文关键词: 沙棘汁 微波消解 电感耦合等离子体质谱法 无机元素 |
英文关键词:sea-buckthorn juice microwave digestion inductively coupling plasma mass spectrometry inorganic element |
基金项目:“十三五”国家重点研发计划项目(2017YFF0211002),国家自然科学基金项目(21405159) |
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中文摘要: |
目的 建立微波消解-电感耦合等离子体质谱法(inductively coupled plasma mass spectrometry, ICP-MS)同时测定沙棘汁饮料中18种无机元素的方法。方法 采用微波消解法对沙棘汁饮料样品进行处理, 采用ICP-MS法测定, 对前处理过程和仪器条件进行了优化, 对方法性能进行考察, 并将该方法用于4批市售沙棘汁样品中18种元素含量的检测。结果 该方法线性范围宽, 线性关系良好(r>0.995), 精密度高, 18种元素的加标回收率为96.4%~107.3%, 相对标准偏差(relative standard deviation, RSD)为0.3%~5.9%。结论 微波消解-ICP-MS法前处理过程简单, 分析时间短, 方法快速、准确、可靠, 能够满足沙棘汁中多种元素同时检测的需要。 |
英文摘要: |
Objective To establish a method for simultaneous determination of 18 kinds of inorganic elements in sea-buckthorn juice by microwave digestion-inductively coupled plasma-mass spectrometry (ICP-MS). Methods The sea-buckthorn juice beverage samples were processed by microwave digestion method, then determined by ICP-MS, and the pretreatment process and instrument conditions were optimized. The performance of the method was examined, and the method was applied to detect 18 kinds of inorganic elements in 4 batches of commercially available sea-buckthorn juice samples. Results The method had a wide linear range, good linearity (r>0.995), high precision, the recoveries of 18 kinds of inorganic elements were 96.4%-107.3%, and the relative standard deviations (RSDs) were 0.3%-5.9%. Conclusion This method has a simple pretreatment process and a short analysis time. It is fast, accurate and reliable, and is suitable for simultaneous determination of various elements in sea-buckthorn juice. |
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