茶叶中镉含量的测定方法比较及浸出规律研究  

Study on the method for the determination of cadmium content in tea and its leaching rule

作　　者：陈宇鸿[1] 王益萍[1] 陈海红[1] 

机构地区：[1]浙江温岭市疾病预防控制中心,浙江温岭317500

出　　处：《微量元素与健康研究》2017年第3期47-48,共2页Studies of Trace Elements and Health

摘　　要：目的:对比及建立茶叶中镉的微波消解—石墨炉原子吸收光谱法测定方法及其浸出规律研究。方法:微波消解—石墨炉原子吸收光谱法测定。结果:简化前处理方法,镉元素浸出率随着浸泡次数的增加而降低。结论:方法准确度、精密度良好、灵敏度高,是实用的测定茶叶中镉的方法,其浸出规律可为今后制定茶标准时提供一定的参考意义。Objective： To study the determination method and extraction rules of cadrnium in tea by Microwave Digestion Graphite Furnace Atomic Absorption Spectrometry and establishing a comparison. Method： Determination of Microwave Digestion Graphite Furnace Atomic Absorption spectrometry. Results： simplify the pretreatment methods, cadmium leaching rate decreased with the increase of soaking times. Conclusion： the method is accuracy, good precision, high sensitivity, is a practical method for determination of cadmium in tea; the leaching rules can provide certain reference significance for the future development of tea standards.

关 键 词：茶叶 微波消解 石墨炉原子吸收光谱法 镉 茶叶标准物质 浸出率 

分 类 号：R115[医药卫生—公共卫生与预防医学]