Nano-Composite Carbon Paste Electrode and PVC membrane Sensor for Potentiometric Determination of Erythromycin

被引:0
|
作者
Ganjali, Mohammad Reza [1 ,3 ]
Pirzadeh-Naeeni, Shirin [2 ]
Faridbod, Farnoush [3 ]
Attar, Hosein [2 ]
Hosseini, Morteza [4 ]
Norouzi, Parviz [1 ,3 ]
机构
[1] Univ Tehran, Ctr Excellence Electrochem, Fac Chem, Tehran, Iran
[2] Islamic Azad Univ, Dept Chem Engn Biotechnol, Sci & Res Branch, Tehran, Iran
[3] Univ Tehran Med Sci, Endocrinol & Metab Res Ctr, Tehran, Iran
[4] Univ Tehran, Fac New Sci & Technol, Tehran, Iran
来源
关键词
Erythromycin; potentiometric sensor; PVC membrane; ion-pair; carbon paste; ION-SELECTIVE ELECTRODE; PHARMACEUTICAL FORMULATION; LANTHANIDE RECOGNITION; ANION RECOGNITION; SEDIMENT SAMPLES; NANOTUBES MWCNTS; LIQUIDS RTILS; CONSTRUCTION; FABRICATION; FLUORIDE;
D O I
暂无
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
In this work, two kinds of potentiometric sensor were introduced. Both sensors respond based on ion-exchange mechanism. Erythromycin-tetraphenyl borate ion-pair was employed as a sensing element in construction of both electrodes. First, PVC membrane electrode was made after series of experiments. The best PVC membrane electrode performance was achieved by a membrane composition of 30% PVC, 60% DBP, and 10% ion-pair. Then, a nano-composite carbon paste electrode was designed to improve the analytical responses. The carbon paste electrode incorporation of multi-walled carbon nano-tube (MWCNTs) and nano-silica showed a better response especially in term of lifetime and response time. The best nano-composite electrode was composed of 25% ion-pair, 4% MWCNTs, 1% nano-silica, 30% paraffin and 40% graphite. The proposed method was successfully applied in determination of erythromycin in some formulations.
引用
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页码:1968 / 1980
页数:13
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