火焰原子吸收分光光度法测定野葛根中5种金属元素含量  

Determination of five metal contents in root of kudzu vine by flame atomic absorption spectrophotometry

作　　者：李雪峰[1] 欧阳玉祝[1] 张晓旭[1] 欧阳旭[1] 

机构地区：[1]吉首大学化学化工学院,湖南吉首416000

出　　处：《应用化工》2015年第5期963-966,共4页Applied Chemical Industry

基　　金：吉首大学植物资源保护与利用湖南省高校重点实验室开放基金项目(13jdzb094)

摘　　要：采用浓硝酸-高氯酸微波消解,用原子吸收分光光度法测定葛根中的钾、钠、钙、镁、锌五种金属含量。结果表明,葛根样品中钾、钠、钙、镁和锌含量分别为6.163 8,6.445 1,12.535 7,2.014 2,0.054 7 mg/g,加标回收率分别为98.89%,97.30%,101.01%,96.81%,96.12%,相对标准偏差为2.11%,1.29%,0.79%,1.92%和4.06%。精密度和重复性实验的相对标准偏差分别为0.65%,0.29%,1.01%,0.57%,1.01%,0.26%,0.61%,0.43%,0.22%,1.35%。The sample were digested with microwave for addition HNO3-HC104, and the contents of the kalium, sodium, calcium, magnesium and zinc in root of kudzu vine were measured by FAAS. The results showed that contents of the kalium, sodium, calcium, magnesium and zinc are 6. 163 8,6. 445 1, 12.535 7,2.014 2 and 0. 054 7 mg/g,repeatability,its recovery of adding standard sample are 98.89%, 97.30%, 101.01% ,96.81% and 96. 12% repeatability. Its relative standard deviation are 2.11%, 1.29% ,0.79%, 1.92% and 4.06%. Relative standard deviation of precision and repeatability experi- ment are 0.65% ,0.29% ,1.01% ,0.57% ,1.01% and 0.26% ,0.61% ,0.43% ,0.22% ,1.35% ,re- peatability.

关 键 词：葛根 金属含量 原子吸收分光光度法 

分 类 号：TQ91[化学工程] O657.3[理学—分析化学]