茶叶中稀土元素检测方法研究进展

摘要

简要概述了茶叶的前处理方法和稀土元素质量分数测定的主要方法，包括灰化法、湿法消解法和微波消解等前处理法，以及分光光度法、电感耦合等离子体发射光谱法、电感耦合等离子体质谱法和中子活化法等检测方法。综合比较，在检测不同类型茶叶中稀土质量分数时，微波消解－ICP-MS 技术具有操作简单、准确度高的优点。%The brief overview of the pretreatment method of tea and analytical method of rare earth elements are introduced,including ashing method,wet digestion method and microwave digestion method;spectrophotometry,inductively coupled plasma optical emission spectrometry (ICP-OES ), inductively coupled plasma mass spectrometry (ICP-MS ) and neutron activation analysis (NAA ). Comparatively,the method based on microwave digestion and ICP-MS,which is precise and simple for determining rare earths in different type tea,is the main analysis method recommended.