ICP-MS法测定英德红茶中的45种元素

被引：13

作者：

张先彩 ^{[1
,2
,3
]}

张春华 ^{[2
]}

黄晓兰 ^{[2
]}

吴惠勤 ^{[2
]}

机构：

[1] 中国科学院广州化学研究所

[2] 中国广州分析测试中心广东省分析测试技术公共实验室

[3] 中国科学院大学

来源：

食品与机械 | 2018年 / 34卷 / 02期

基金：

广东省科技计划;

关键词：

电感耦合等离子体质谱; 微波消解; 茶叶; 元素;

D O I：

10.13652/j.issn.1003-5788.2018.02.014

中图分类号：

O657.63 [质谱分析]; TS272.7 [产品标准与检验];

学科分类号：

070302 [分析化学]; 100403 [营养与食品卫生学];

摘要：

采用微波消解-电感耦合等离子体质谱法测定英德红茶中的45种元素,试验结果表明,45种元素的线性关系良好,相关系数在0.999 5以上,各元素的检出限为0.000 1～20.090 0μg/L,加标回收率为82.58%119.19%,相对标准偏差（RSD）为0.20%7.03%,除Sb外,其他元素精密度RSD为0.15%9.14%,采用茶叶标准样品（GBW10083）对该方法进行验证,除Cd略低于标准值外,其他元素的测定值均在标准值范围之内。该方法在线性相关性、检出限、精密度、准确度和加标回收率方面均满足实际样品测定要求,具有快速简便、准确可靠等优点。

引用

页码：62 / 66+96 +96

页数：6

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