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环境化学  2015 

中空纤维膜萃取-液相色谱法测定印染废水中芳香胺

Keywords: 液相微萃取,液相色谱,芳香胺,印染废水

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Abstract:

建立了一种中空纤维膜液相微萃取的样品前处理技术,结合液相色谱法测定印染废水中芳香胺,并且优化了萃取溶剂、供体相、接收相、搅拌速度、萃取时间等前处理条件.实验结果表明,以正辛醇为萃取溶剂,0.1mol·L-1NaOH为供体相,0.1mol·L-1HCl为接收相时,400r·min-1作为搅拌速度,30min萃取后的芳香胺富集倍数可达到101—193倍,萃取效率达20.2%—38.6%.结合液相色谱检测芳香胺的线性范围为0.01—0.25mg·L-1,检出限为1.0—2.0μg·L-1,回收率为95.2%—105.2%.表明该方法可用于检测印染废水中的芳香胺类物质.

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