SIMPLE METHOD FOR MICROGRAM AMOUNTS OF SULFATE IN ATMOSPHERIC PARTICULATES

被引：12

作者：

HOFFER, EM ^{[1
]}

KOTHNY, EL ^{[1
]}

APPEL, BR ^{[1
]}

机构：

[1] CALIF STATE DEPT HLTH,LAB SERV BRANCH,AIR & IND HYG LAB,BERKELEY,CA 94704

来源：

ATMOSPHERIC ENVIRONMENT | 1979年 / 13卷 / 02期

关键词：

D O I：

10.1016/0004-6981(79)90173-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A simple, manual procedure is described which is useful for the analysis of water-soluble sulfate in low volume ( = 20m3) filter samples. The technique uses an aqueous extraction and an exchange reaction between a barium-nitrosulfonazo III chelate and sulfate in aqueous acetonitrile. Decrease of absorbance at 642 nm is measured in a double beam spectrophotometer. The method has been evaluated for extraction efficiency, precision, accuracy, working range, equivalence to other methods, and interferences. © 1979.

引用

页码：303 / 306

页数：4

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