黄金茶中砷、汞、镉、铅的含量测定  

Determination of Heavy Metals in Gold Tea

作　　者：林剑军[1] 秦菁莉[1] 周萍[1] 杨颖[1] 

机构地区：[1]大理学院药学院,云南大理671000

出　　处：《大理学院学报（综合版）》2009年第10期24-26,共3页Journal of Dali University

基　　金：大理学院大学生科研基金资助项目(2008DXS018)

摘　　要：目的:测定黄金茶中砷、汞、镉、铅的含量。方法:用原子荧光分光光度法测定黄金茶中重金属含量。结果:砷、汞、镉、铅含量分别为0.2782、0.0033、0.0176、2.0042mg/kg,精密度及重复性均良好,砷在0～0.1mg/L,汞在0～0.024mg/L,镉在0～0.005mg/L,铅在0～0.4mg/L范围内线性关系良好,r分别为0.9993、0.999 9、0.999 4、0.999 4。加标回收率分别为99.93%、99.85%、99.97%、99.91%,RSD≤0.72%(n=6)。结论:茶叶中重金属含量均未超标,符合无公害食品标准。Objective：To analyze the content of As,Hg,Cd,Pb in gold tea. Methods： Detecting heavy metals by atomic spectrophotofluorimetry. Results： The content of As, Hg, Cd, Pb was 0.27 8 2,0.003 3,0.017 6,2.004 2mg/kg respectively; precision and reproducibility were good and As in 0-100μg/ml,Hg in 0-24μg/ml,Cd in 0-5μg/ml,Pb in 0-400μg/ml has a good linear relationship. The recovery was 99.85%-99.97% and RSD ≤0.72% （n=6）. Conclusion： Heavy metal content did not exceed the standard of the harmless food.

关 键 词：黄金茶 重金属 原子荧光分光光度法 

分 类 号：Q959.747.2[生物学—动物学]