On the effect of hydrogen peroxide on the flow-injection determination of platinum based on luminol chemiluminescent reaction

被引：4
|
作者：
Malejko, J. [1 ]
Milewska, R. [1 ]
Lesniewska, B. [1 ]
Godlewska-Zylkiewicz, B. [1 ]
Kojlo, A. [1 ]
机构：
[1] Univ Bialystok, Inst Chem, PL-15399 Bialystok, Poland
来源：
ANALYTICAL LETTERS | 2007年 / 40卷 / 05期
关键词：
platinum; flow-injection; chemiluminescence; luminol; hydrogen peroxide;
D O I：
10.1080/00032710601017904
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Downloaded By: [Institute for Scientific Information] At: 17: 08 5 April 2007 A flow-injection chemiluminescent (CL) method for the determination of trace amounts of Pt(IV) based on the oxidation reaction of luminol in alkaline solution is proposed. The effect of Pt(IV) on the oxidation of luminol was studied in the absence and in the presence of hydrogen peroxide. The positive effect of hydrogen peroxide as well as chloride ions on the sensitivity of measurements was observed. The developed method is characterized by a low limit of detection of Pt (LOD = 0.06 ng mL(-1)) and good reproducibility (RSD = 2.2%). The addition of hydrogen peroxide to the reaction medium resulted in decreasing of platinum detection limit to 0.03 ng mL(-1).
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页码：961 / 973
页数：13
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