COMPARISON OF DIGESTION METHODS FOR DETERMINATION OF ORGANO-ARSENICALS IN WASTEWATER

被引：22

作者：

STRINGER, CE ^{[1
]}

ATTREP, M ^{[1
]}

机构：

[1] E TEXAS STATE UNIV,DEPT CHEM,COMMERCE,TX 75428

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 06期

关键词：

D O I：

10.1021/ac50042a035

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Two digestive methods were investigated and compared as to their effectiveness in releasing arsenic from three organoarsenicals introduced into wastewater samples. The digestive methods utilized included a wet method employing hydrogen peroxide-sulfuric acid and ultraviolet photodecomposition. The organoarsenicals investigated were disodium methanearsonate, dimethylarsinic acid, and triphenylarsine oxide. All the digestive methods gave quantitative arsenic recoveries for the three organoarsenic compounds when added to wastewater samples. The ultraviolet photodecomposition proved to be an effective digestive technique, requiring a 4-h irradiation to decompose a primary settled raw wastewater sample containing spiked quantities of the three organoarsenicals. © 1979, American Chemical Society. All rights reserved.

引用

页码：731 / 734

页数：4

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