DESIGN AND OPTIMIZATION OF A TEFLON HELIX CONTINUOUS LIQUID-LIQUID-EXTRACTION APPARATUS AND ITS APPLICATION FOR ANALYSIS OF ORGANOPHOSPHATE PESTICIDES IN WATER

被引：17

作者：

WU, C ^{[1
]}

SUFFET, IH ^{[1
]}

机构：

[1] DREXEL UNIV,INST ENVIRONM STUDIES,PHILADELPHIA,PA 19104

来源：

ANALYTICAL CHEMISTRY | 1977年 / 49卷 / 02期

关键词：

D O I：

10.1021/ac50010a015

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A statistical optimization study leading to the final design and operational parameters for extraction of organophosphate pesticides is described with a new ″Teflon Helix Continuous Liquid-Liquid Extractor″ . A coil length of 32 feet, helix winding diameter of 1 inch, aqueous flow rate of 900 ml/h, water to solvent ratio of 10:1 without premixing were the optimal design parameters. Recoveries of mu g to eta g/l. concentrations of organophosphate pesticides from fortified river water, sea water, and secondary sewage effluent were completed. Greater than 80% efficiency relative to batch extraction is demonstrated with continuous liquid-liquid extraction and continuous evaporative concentration.

引用

页码：231 / 237

页数：7

共 12 条

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[7] PRINS J, 1973, STATISTICAL PROGRAM
[8] SUFFET IH, 1975, STP573 AM SOC TEST M, P167
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[10] WU C, 1975, STP582 AM SOC TEST M, P90

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