CATALYTIC SPECTROPHOTOMETRIC DETERMINATION OF SELENIUM

被引：18

作者：

SAFAVI, A

AFKHAMI, A

机构：

[1] Department of Chemistry, College of Sciences, Shiraz University

来源：

ANALYTICAL LETTERS | 1995年 / 28卷 / 06期

关键词：

SELENIUM; CATALYTIC; SPECTROPHOTOMETRIC DETERMINATION;

D O I：

10.1080/00032719508002681

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A highly sensitive catalytic spectrophotometric method is proposed as a new method for the determination of Se(IV) and Se(VI). The method is based on the catalytic effect of Se(IV) in redox reaction of bromate with semicarbazide in hydrochloric acid media. The determination range of both analyses is 50-4000 ng . ml(-1). Selenium as low as 43 ng . ml(-1) could be determined by this method. The application of the method to the determination of selenium in Kjeldahl tablets and in a health-care product is described.

引用

页码：1095 / 1105

页数：11

共 14 条

[1] SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF SELENIUM WITH CATALYTIC REDUCTION OF BROMATE BY HYDRAZINE IN HYDROCHLORIC-ACID MEDIA
AFKHAMI, A
SAFAVI, A
MASSOUMI, A
[J]. TALANTA, 1992, 39 (08) : 993 - 996
[2] BELERRA PM, 1986, J ANAL AT SPECT, V1, P141
[3] BROWN MW, 1977, ANAL CHIM ACTA, V89, P35
[4] CATALYTIC DETERMINATION OF SELENIUM WITH A PICRATE-SELECTIVE ELECTRODE
DIAMANDIS, EP
HADJIIOANNOU, TP
[J]. ANALYTICA CHIMICA ACTA, 1981, 123 (JAN) : 143 - 150
[5] KAWASHIMA T, 1968, ANAL CHEM, V40, P143
[6] MICHIE ND, 1978, J ASSOC OFF ANA CHEM, V61, P48
[7] MILLS CF, 1979, CHEM BRIT, V15, P512
[8] MORRIS JG, 1984, SCIENCE, V233, P491
[9] SELENIUM IN ENVIRONMENTAL WATERS - DETERMINATION, SPECIATION AND CONCENTRATION LEVELS
ROBBERECHT, H
VANGRIEKEN, R
[J]. TALANTA, 1982, 29 (10) : 823 - 844
[10] SELENIUM IN HUMAN-URINE - DETERMINATION, SPECIATION AND CONCENTRATION LEVELS
ROBBERECHT, HJ
DEELSTRA, HA
[J]. TALANTA, 1984, 31 (07) : 497 - 508

← 1 2 →