FLOW-INJECTION ANALYSIS IN THE EVALUATION OF SUPPORTED LIQUID MEMBRANES

被引：18

作者：

BARNES, DE ^{[1
]}

VANSTADEN, JF ^{[1
]}

机构：

[1] UNIV PRETORIA,DEPT CHEM,PRETORIA 0002,SOUTH AFRICA

来源：

ANALYTICA CHIMICA ACTA | 1992年 / 261卷 / 1-2期

关键词：

FLOW SYSTEM; SPECTROPHOTOMETRY; EXTRACTION; LIQUID MEMBRANES; PRECONCENTRATION;

D O I：

10.1016/0003-2670(92)80225-V

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Supported liquid membranes (SLMs) have been used for the selective separation arid preconcentration of numerous compounds. Existing optimization of SLM systems is a manual and time-consuming process. This work introduces the concept of using a flow-injection analysis (FIA) manifold, linked to a flow-through SLM unit, to study and optimize SLMs. FIA was used to investigate the characteristics of a cationic SLM and the effect of various conditions on the operation of this SLM. Parameters such as flow-rate and the chemical compositions of the feed solution, the stripping solution and the membrane were evaluated. In addition, FIA allowed various SLMs, containing different organic diluents, to be evaluated in a short time.

引用

页码：441 / 451

页数：11

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