ANODIC-STRIPPING VOLTAMMETRY OF SELENIUM(IV) AT A GOLD FIBER WORKING ELECTRODE

被引：26

作者：

MCLAUGHLIN, K ^{[1
]}

BOYD, D ^{[1
]}

HUA, C ^{[1
]}

SMYTH, MR ^{[1
]}

机构：

[1] DUBLIN CITY UNIV,SCH CHEM SCI,DUBLIN 9,IRELAND

来源：

ELECTROANALYSIS | 1992年 / 4卷 / 07期

关键词：

SELENIUM; STRIPPING VOLTAMMETRY; GOLD FIBER ELECTRODE;

D O I：

10.1002/elan.1140040704

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The anodic stripping voltammetry of selenium (IV) in a gold fiber electrochemical flow cell is described. The cell is simple to construct and flexible in its operation. The nonlinear diffusional mass transport characteristics of such small diameter electrodes influence the anodic stripping voltammetry of Se(IV) with the result that significant deposition of metal ions occurs during the scan period from the deposition potential to the peak potential. Therefore, an extremely short deposition period of the order of 20 seconds can be employed at the gold fiber electrode. The system described resulted in a linear working range from 0-15 ng/mL, a detection limit of 0.5 ng/mL Se(IV) and a relative standard deviation of 6% at 5 ng/mL (n = 7) in pure solution.

引用

页码：689 / 693

页数：5

共 14 条

[1] STRIPPING VOLTAMMETRIC DETERMINATION OF SELENIUM IN BIOLOGICAL-MATERIALS BY DIRECT CALIBRATION [J].