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首页> 外文期刊>Electroanalysis >Electrochemical Morphine Sensor Based on Gold Nanoparticles Metalphthalocyanine Modified Carbon Paste Electrode
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Electrochemical Morphine Sensor Based on Gold Nanoparticles Metalphthalocyanine Modified Carbon Paste Electrode

机译:基于金纳米颗粒金属酞菁修饰碳糊电极的电化学吗啡传感器

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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).
机译:电化学沉积了金纳米颗粒(Au)和不同金属酞菁(Co,Ni,Cu和Fe)的复合物。该复合材料用作碳糊电极的改性剂,并在抗坏血酸和尿酸存在下用于测定吗啡。酞菁部分的中心金属原子影响电子转移的速率。因此,评估了不同改性剂对吗啡氧化的电活性。在所有研究的pH电解质中,Au-CoPcM-CPE的电荷转移速率最高。检测限为5.48 x 10(-9)molL(-1),范围为4.0 x 10(-7)至9.0 x 10(-4)molL(-1)。

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