石墨炉原子吸收法测定木薯干发酵过程中铅元素  

GF-AAS determination of Lead in fermentation process of cassava

作　　者：梅少博[1] 张文国[1] 侯晋[1] 倪鹏[1] 

机构地区：[1]南通出入境检验检疫局,江苏南通226005

出　　处：《化工时刊》2009年第7期43-45,共3页Chemical Industry Times

基　　金：南通市指导性社会发展科技计划(No.S2007008)

摘　　要：用微波消解-石墨炉原子吸收光谱法测定了进口木薯干以及其发酵产物酒精中铅元素的含量。方法的检出限为5μg·L-1。对木薯干原料及酒精样品作了分析,铅测定值的相对标准偏差(n8)分别为1.79%和1.59%;回收率在92.7%～101.2%之间。Contents of lead in imported cassava and alcohol were determined by GF - AAS. Sample of cassava was digested with microwave. Detection limits was found as （ μg·L^-1 ） 5. The proposed method was used in the analysis of substantial samples of cassava and alcohol for the lead contents, giving values of RSD （ n = 8 ） 1.79 % and 1.59 %, and values of recovery in the range from 92.7% - 101.2%.

关 键 词：微波消解 石墨炉原子吸收光谱法 铅 木薯干 酒精 

分 类 号：TS262.2[轻工技术与工程—发酵工程]