SELECTIVE STOPPED-FLOW DETERMINATION OF MANGANESE WITH LUMINOL IN THE ABSENCE OF HYDROGEN-PEROXIDE

被引：19

作者：

GAIKWAD, A ^{[1
]}

SILVA, M ^{[1
]}

PEREZBENDITO, D ^{[1
]}

机构：

[1] UNIV CORDOBA,FAC SCI,DEPT ANALYT CHEM,E-14004 CORDOBA,SPAIN

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 302卷 / 2-3期

关键词：

CHEMILUMINESCENCE; FLOW SYSTEM; MANGANESE; BIOLOGICAL SAMPLES;

D O I：

10.1016/0003-2670(94)00497-A

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel stopped-flow chemiluminescence method for the determination of manganese by reaction with luminol in the presence of high concentrations of sodium chloride and the absence of hydrogen peroxide is proposed. Light emission takes place over a very short interval (less than ca. 200 ms). The activity of other ions that react with luminol under the experimental conditions used in the absence of hydrogen peroxide is examined. The proposed method permits the sensitive determination of manganese (detection limit 1.8 X 10(-8) M), with high precision (R.S.D. < 1%), selectivity (thanks to the presence of triethanolamine) and sample throughput (100 samples h(-1)). It was applied to the determination of manganese in certified biological samples. A possible mechanism for the sodium chloride effect was proposed.

引用

页码：275 / 282

页数：8

共 19 条

[1] MECHANISM OF COBALT CATALYSIS OF LUMINOL CHEMILUMINESCENCE [J].

BURDO, TG ;

SEITZ, WR .

ANALYTICAL CHEMISTRY, 1975, 47 (09) :1639-1643

[2]

CAMPBELL AK, 1988, CHEMILUMINESCENCE PR, P414

[3] HALIDE ION ENHANCEMENT OF CHROMIUM(III), IRON(II), AND COBALT(II) CATALYSIS OF LUMINOL CHEMI-LUMINESCENCE [J].

CHANG, CA ;

PATTERSON, HH .

ANALYTICAL CHEMISTRY, 1980, 52 (04) :653-656

[4] DETERMINATION OF TRIVALENT CHROMIUM IN SEAWATER BY CHEMI-LUMINESCENCE [J].

CHANG, CA ;

PATTERSON, HH ;

MAYER, LM ;

BAUSE, DE .

ANALYTICAL CHEMISTRY, 1980, 52 (08) :1264-1267

[5] Catalytic properties of the phthalocyanines. Part IV. Chemiluminescent reactions. [J].

Cook, AH .

JOURNAL OF THE CHEMICAL SOCIETY, 1938, :1845-1847

[6] THE STOPPED-FLOW TECHNIQUE IN ANALYTICAL-CHEMISTRY [J].

GOMEZHENS, A ;

PEREZBENDITO, D .

ANALYTICA CHIMICA ACTA, 1991, 242 (02) :147-177

[7] EFFECT OF IRON(II), COBALT(II), COPPER(II), AND MANGANESE(II) ON THE CHEMI-LUMINESCENCE OF LUMINOL IN THE ABSENCE OF HYDROGEN-PEROXIDE [J].

KLOPF, LL ;

NIEMAN, TA .

ANALYTICAL CHEMISTRY, 1983, 55 (07) :1080-1083

[8] LIMIT OF DETECTION [J].

LONG, GL ;

WINEFORDNER, JD .

ANALYTICAL CHEMISTRY, 1983, 55 (07) :A712-+

[9] LOPHINE CHEMI-LUMINESCENCE FOR METAL-ION DETERMINATIONS [J].

MACDONALD, A ;

CHAN, KW ;

NIEMAN, TA .

ANALYTICAL CHEMISTRY, 1979, 51 (13) :2077-2082

[10]

MERENYI G, 1980, J AM CHEM SOC, V102, P582

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