DETERMINATION OF TRACE AMOUNTS OF LEAD BY CHELATING ION-EXCHANGE AND ONLINE PRECONCENTRATION IN FLOW-INJECTION ATOMIC-ABSORPTION SPECTROMETRY

被引：26

作者：

PUROHIT, R ^{[1
]}

DEVI, S ^{[1
]}

机构：

[1] MAHARAJA SAYAJIRAO UNIV BARODA,FAC SCI,DEPT CHEM,BARODA 390002,GUJARAT,INDIA

来源：

ANALYTICA CHIMICA ACTA | 1992年 / 259卷 / 01期

关键词：

ATOMIC ABSORPTION SPECTROMETRY; ION EXCHANGE; FLOW SYSTEM; CHELATING RESINS; LEAD; PRECONCENTRATION;

D O I：

10.1016/0003-2670(92)85074-G

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Resins synthesized from quinolin-8-ol and resorcinol or hydroquinone, with furfuraldehyde, formaldehyde or benzaldehyde as cross-linking agent, were used for the preconcentration of nanogram amounts of lead. The rate of exchange and activation energy of lead exchange were calculated. Column separations of lead-copper and lead-zinc did not show any cross-contamination. A continuous-flow manifold using resin microcolumns was developed for the preconcentration and determination of lead.

引用

页码：53 / 60

页数：8

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