现代食品科技2011，Vol.27Issue(11)：1419-1420,1371,3.
石墨炉原子吸收光谱法测定龟苓膏粉中铅含量
Determination of Pb Content in Guiling Jelly Powder by GFAAS
梁剑锋 1李亚1
作者信息
- 1. 梧州市产品质量监督检验所,广西梧州543002
- 折叠
摘要
Abstract
The sample of Guiling Jelly-powder was pretreated by dry digestion, and lead content in the sample solution was determined by GFAAS. Mixed solution of NH4H2PO4 and Mg(NO3)2 was used as matrix modifier to offset interference of saponine produced during digestion. Linear relationship between values of absorbance and mass concentration of lead was obtained in the range of 5.0-40.0 ng/L, with detection limit (3s/k) of 26pg and RSD (n=7) of 2.82%. The values of recovery were in the range of 92. L%～99.0%.关键词
石墨炉原子吸收光谱法/龟苓膏粉/铅Key words
GFAAS/ guiling jelly-powder, lead引用本文复制引用
梁剑锋,李亚..石墨炉原子吸收光谱法测定龟苓膏粉中铅含量[J].现代食品科技,2011,27(11):1419-1420,1371,3.
