A study of nitrite oxidation at platinum microelectrodes

被引：26

作者：

Bertotti, M

Pletcher, D

机构：

[1] UNIV SAO PAULO, INST QUIM, BR-05508900 SAO PAULO, BRAZIL

[2] UNIV SOUTHAMPTON, DEPT CHEM, SOUTHAMPTON SO17 1BJ, HANTS, ENGLAND

来源：

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 1997年 / 8卷 / 04期

关键词：

nitrite; microelectrodes; platinum oxide; GLASSY-CARBON ELECTRODE; AMPEROMETRIC DETERMINATION; NATURAL-WATERS; VOLTAMMETRY; ULTRAMICROELECTRODES;

D O I：

10.1590/S0103-50531997000400012

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The anodic oxidation of nitrite at Pt microdisc electrodes (radii 5-25 mu m) has been studied. It is shown that the electrode reaction is not simple and the response is determined by the oxide coverage of the surface. It is, however, possible to define conditions for the amperometric determination of nitrite in neutral, aqueous chloride solutions; once the electrode surface is preconditioned, the method is rapid and simple and has a lowest detection limit of approximate to 2 mu M.

引用

页码：391 / 395

页数：5

共 21 条

[1] *AM PUBL HLTH ASS, 1965, STAND METH EX WAT WA
[2] EFFECT OF SURFACE OXIDATION AND PLATINIZATION ON BEHAVIOR OF PLATINUM ELECTRODES - REDUCTION OF VANADIUM(V) AND IODATE
ANSON, FC
KING, DM
[J]. ANALYTICAL CHEMISTRY, 1962, 34 (03) : 362 - &
[3] KINETICS AND MECHANISM OF THE EARLY STAGES OF THE VOLTAMMETRIC ELECTROOXIDATION OF CARBON-MONOXIDE PREADSORBED ON POLYCRYSTALLINE PLATINUM IN ACID ELECTROLYTE
BILMES, SA
ARVIA, AJ
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1986, 198 (01): : 137 - 148
[4] OXIDATIVE FLOW-INJECTION AMPEROMETRIC DETERMINATION OF NITRITE AT AN ELECTROCHEMICALLY PRE-TREATED GLASSY-CARBON ELECTRODE
CHAMSI, AY
FOGG, AG
[J]. ANALYST, 1988, 113 (11) : 1723 - 1727
[5] FLOW-INJECTION DETERMINATION OF NITRITE BY AMPEROMETRIC DETECTION AT A MODIFIED ELECTRODE
COX, JA
KULKARNI, KR
[J]. ANALYST, 1986, 111 (10) : 1219 - 1220
[6] OXIDATION AND DETERMINATION OF NITRITE AT MODIFIED ELECTRODES
COX, JA
KULESZA, PJ
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 175 (1-2) : 105 - 118
[7] A SELECTIVE ELECTROLYTIC SENSOR FOR NITRITE BASED ON A MODIFIED PLATINUM-ELECTRODE
COX, JA
KULESZA, PJ
[J]. ANALYTICA CHIMICA ACTA, 1984, 158 (02) : 335 - 341
[8] Fleischmann M., 1987, Ultramicroelectrodes, DOI DOI 10.1016/j.jelechem.2013.04.003
[9] Electrochemical reduction of nitrates and nitrites in alkaline nuclear waste solutions
Genders, JD
Hartsough, D
Hobbs, DT
[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 1996, 26 (01) : 1 - 9
[10] An electrochemical method for the determination of residual styrene in polystyrene
Geraldo, MD
Montenegro, MI
Pletcher, D
[J]. TALANTA, 1995, 42 (11) : 1725 - 1729

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