双硫腙萃取吸光光度法检测牙膏中铅的含量  

Determination of Lead from Toothpaste by Spectrophotometry

作　　者：苏海涛[1] 

机构地区：[1]云南省产品质量监督检验中心,云南昆明650034

出　　处：《云南化工》2003年第6期32-34,共3页Yunnan Chemical Technology

摘　　要：　介绍了利用吸光光度法检测牙膏中铅(Pb)的含量的方法,本方法适用于以碳酸钙和磷酸氢钙为原材料生产的牙膏产品。该方法精确度高,标准偏差小于0.1%,相对标准偏差小于2%。Determination of lead from toothpaste by spectrophotometry was reported, which was applicable for toothpaste made from calcium carbonate and calcium hydrogen phosphate with high accuracy. The standard error was less than 0.1% and relative standard error less than 2%.

关 键 词：吸光光度法 牙膏 铅 双硫腙 萃取 碳酸钙 磷酸氢钙 

分 类 号：TQ658.41[化学工程—精细化工] O657.32[理学—分析化学]