首页 | 本学科首页   官方微博 | 高级检索  
     检索      

原生态金秋梨中微量元素锌的光谱测定
引用本文:蒋天智,唐文华,杨红芸,杨东升.原生态金秋梨中微量元素锌的光谱测定[J].贵州师范大学学报(自然科学版),2008,26(4).
作者姓名:蒋天智  唐文华  杨红芸  杨东升
作者单位:凯里学院,应用化学研究所,贵州,凯里,556000
摘    要:测定黔东南苗族侗族自治州原生态"苗疆"牌台江金秋梨中微量元素锌的含量。方法:用正交试验优化仪器最佳工作条件,微波消解样品,火焰原子吸收光谱法(FAAS)测定微量元素锌。结果:"苗疆"牌金秋梨锌元素含量为3.1mg/Kg,方法的特征浓度为0.0057μg/mL,检出限为0.0079μg/mL,相对标准偏差为0.62%,加标回收率在98%~102.7%之间,适用于金秋梨中微量元素锌的测定。结论:"苗疆"牌金秋梨微量元素锌的含量较高,具有很高的食用价值和药用价值。

关 键 词:金秋梨  原生态  微波消解  原子吸收光谱法  

Spectrometric determination of the content of trace element zinc in primary ecological'Jinqiu'pear
JIANG Tian-zhi,TANG Wen-hua,YANG Hong-yun,YANG Dong-sheng.Spectrometric determination of the content of trace element zinc in primary ecological'Jinqiu'pear[J].Journal of Guizhou Normal University(Natural Sciences),2008,26(4).
Authors:JIANG Tian-zhi  TANG Wen-hua  YANG Hong-yun  YANG Dong-sheng
Abstract:Objective:To determine the contents of the trace element zinc in primary ecological "miao jiang" brand 'Jinqiu' pear,Taijiang,Qiandongnan Miao & Dong Autonomous Prefecture.Method: Working conditions of optimized instrument by orthogonal experimental design,microwave digestion samples and flame atomic absorption spectrophotometry(FAAS)were used to determine the content of trace element zinc.Result:The content of trace element zinc in "Miao jiang" brand 'Jinqiu' pear was 3.1mg/kg.The characteristic concentration was 0.0057μg/mL.The detection limit was 0.0079μg/ml.The relative standard deviation was 0.62%.The recovery rate were 98%~102.7%,which was adapted to the determination of trace element zinc in 'Jinqiu' pear.Conclusion:"Miao jiang" brand 'Jinqiu' pear has a high znic content.So it has a very high edible value and medicinal value.The method was simple,accurate and with a high sensitivity.
Keywords:‘Jinqiu’ pear  original ecology  microwave digestion  atomic absorption spectrometry  zinc
本文献已被 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号