Electrochemical Morphine Sensor Based on Gold Nanoparticles Metalphthalocyanine Modified Carbon Paste Electrode

被引：20
作者：
Atta, Nada F. [1 ]
Galal, Ahmed [1 ]
Abdel-Gawad, Fatma M. [2 ]
Mohamed, Eman F. [2 ]
机构：
[1] Cairo Univ, Dept Chem, Fac Sci, Giza 12013, Egypt
[2] Natl Org Drug Control & Res, Giza, Egypt
来源：
ELECTROANALYSIS | 2015年 / 27卷 / 02期
关键词：
Carbon paste electrode; Phthalocyanine; Gold nanoparticles; Sensor; Morphine; Human urine; SODIUM DODECYL-SULFATE; CONTINUOUS CYCLIC VOLTAMMETRY; SOLID-PHASE EXTRACTION; COBALT-PHTHALOCYANINE; LIQUID-CHROMATOGRAPHY; AMPEROMETRIC DETERMINATION; SELECTIVE DETERMINATION; ELECTROCATALYTIC BEHAVIOR; FLUORESCENCE DETECTION; REDUCED GLUTATHIONE;
D O I：
10.1002/elan.201400464
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Composites of gold nanoparticles (Au) electrochemically deposited and different metal phthalocyanines (Co, Ni, Cu, and Fe) were chemically prepared. The composites were used as modifiers for carbon paste electrodes and were used for the determination of morphine in presence of ascorbic acid and uric acid. Central metal atoms of phthalocyanine moiety affected the rate of electron transfer. Thus, the electroactivity of different modifiers were evaluated towards morphine oxidation. Au-CoPcM-CPE possessed the highest rate for charge transfer rate in all studied pH electrolytes. Limit of detection was 5.48 x 10(-9) molL(-1) in the range of 4.0 x 10(-7) to 9.0 x 10(-4) molL(-1).
引用
收藏
页码：415 / 428
页数：14
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