COLORIMETRIC METHOD FOR THE DETERMINATION OF ARSENITE, ARSENATE, MONOMETHYLARSONIC ACID, AND DIMETHYLARSINIC ACID IN BIOLOGICAL AND ENVIRONMENTAL-SAMPLES

被引：15

作者：

LAKSO, JU ^{[1
]}

ROSE, LJ ^{[1
]}

PEOPLES, SA ^{[1
]}

SHIRACHI, DY ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,SCH VET MED,DEPT PHYSIOL SCI,DAVIS,CA 95616

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1979年 / 27卷 / 06期

关键词：

D O I：

10.1021/jf60226a002

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

A spectrophotometric method is described for the determination of arsenite, arsenate, monomethylarsonicacid, and dimethylarsinic acid in biological and environmental samples. The arsenic species are volatilized to their corresponding arsines after reduction by sodium borohydride. The arsine and methylarsines form two different color complexes with silver diethyldithiocarbamate. By use of simultaneous spectrophotometric equations, the amount of each arsine can be determined. The quantitative limit is 1.0 ng of elemental As for all four arsenic species. Recoveries of 90-100% of all four arsenic species from albumin, plant extracts, plasma, urine, and water are reported. © 1979, American Chemical Society. All rights reserved.

引用

页码：1229 / 1233

页数：5

共 28 条

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