火焰原子吸收光谱法测定纯棉纺织品中锌和锰的可提取态与总量  

Determination of the Extractable Speciation and Total Amount of Zinc and Manganese in Cotton Textiles by Flame Atomic Absorption Spectrometry

作　　者：祖文川[1] 李冰宁[1] 汪雨[1] 武彦文[1] 陈舜琮[1] 

机构地区：[1]北京市理化分析测试中心,北京100089

出　　处：《分析科学学报》2013年第2期223-226,共4页Journal of Analytical Science

基　　金：科技部创新方法专项(No.2010IM040200);北京生态纺织品检测技术服务平台建设项目

摘　　要：采用酸性汗液提取纯棉纺织品中锌和锰,火焰原子吸收光谱法(FAAS)测定可提取态含量;同时建立了微波辅助消解溶样,FAAS测定纯棉纺织品中锌和锰总量的方法。锌和锰的检出限分别为2.0和3.0μg·L-1,可提取态和总量测定结果的相对标准偏差在1.8%～6.6%之间,加标回收率在91.2%～104.8%范围。对5种北京市市售纯棉纺织品测定,锌的可提取态含量在0.31～3.26μg·g-1之间,总量为3.43～37.93μg·g-1;锰的可提取态含量在0.19～1.39μg·g-1之间,总量为0.56～3.17μg·g-1。Zinc and manganese in cotton textiles were extracted into the acidic sweat, and the extractable speciation was then determined by flame atomic absorption spectrometry（FAAS）. Meanwhile,a method was used to determine the total amount of zinc and manganese in cotton textiles by FAAS assisted by microwave digestion. The detection limits for zinc and manganese were 2.0 and 3.0μg·L-1 ,respectively. The relative standard deviations for the extractable speciation and total amount determination were in the range of 1.8%-6.6 %,and the spiked recoveries were in the range of 91.2%-104.8%. Five kinds of cotton textiles purchased from the Beijing market were determined. The extractable speciation amount of zinc and manganese were in the range of 0. 31-3. 26 /zg.g 1 and 0.19-1. 39 μg.g-1 ,and the total amount were in the range of 3.43-13.31 μg.g 1 and 0.56-3.17 μg·g-1 ,respectively.

关 键 词：火焰原子吸收光谱法 纯棉纺织品 锌 锰 可提取态 总量 

分 类 号：O657.31[理学—分析化学]