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摘 要:运用毛细管区带电泳法,通过在缓冲溶液中添加多阳离子化合物改变电渗流方向的方法,快速分离了11种一取代、二取代和三取代硝基酚及4种在德国常用的除草剂Bromoxynil,DNOC,Dinoterb和Ioxynil。使用UV检测,这些化合物的检测限在0.5mg/L~1.1mg/L。为满足环境样品分析的要求,使用固相萃取方法对样品进行了预处理,使硝基酚的检测限达到1μg/L以下,并对实际样品进行了分析。
Abstract:11
Nitrophenols and some acidic herbicides have been separated by modified
CZE. Good separation of such compounds can be achieved in less than 10
min by simply modifying the run buffer with organic solvents such as
methanol, acetonitrile in a concentration of 40% (V/V). The limits of
detection (LODs) for nitrophenols by UV-absorption at 215 nm were 0.5
mg/L-1.1 mg/L. Solid phase extraction was used to preconcentrate
nitrophenols and some herbicides to reach an LOD at μg/L
levels. Typical samples have been analyzed. |
作者简介:刘学良(1964-),男,博士,副研究员,1985年毕业于四川大学化学系,电话:(0411)3693506。 作者单位:刘学良(中国科学院大连化学物理研究所,辽宁大连 116012) 王进防(中国科学院大连化学物理研究所,辽宁大连 116012) 王俊德(中国科学院大连化学物理研究所,辽宁大连 116012) 商振华(中国科学院大连化学物理研究所,辽宁大连 116012) Hartmut FRANK(Environmental Chemistry and Ecotoxicology, University of Bayreuth, D-95440 Bayreuth, Germany) 参考文献: [1]Ullmann’s Encycl.
Ind chem, Vol A7. 5th ed. Weinheim (Germany): VCH Verlag, 1986. 1,277,450 |
原载于《色谱》2001 Vol.19 No.2
P.173-175
http://periodical.wanfangdata.com.cn/periodical/sp/sp2001/0101/0101ml.htm