Asymmetric Pt(II)-Porphyrin Incorporated in a PVC Ion-Selective Membrane for the Potentiometric Detection of Citrate

被引：2
|
作者：
Vlascici, Dana [1 ]
Lascu, Anca [2 ]
Fratilescu, Ion [2 ]
Anghel, Diana [2 ]
Epuran, Camelia [2 ]
Birdeanu, Mihaela [3 ]
Chiriac, Vlad [1 ]
Fagadar-Cosma, Eugenia [2 ]
机构：
[1] West Univ Timisoara, Fac Chem Biol Geog, 4 Vasile Parvan Ave, Timisoara 300223, Romania
[2] Inst Chem Coriolan Dragulescu, Mihai Viteazu Ave 24, Timisoara 300223, Romania
[3] Natl Inst Res & Dev Electrochem & Condensed Matter, Plautius Andronescu St 1, Timisoara 300224, Romania
来源：
CHEMOSENSORS | 2023年 / 11卷 / 02期
关键词：
Pt-metalloporphyrin; A(3)B porphyrin; potentiometric sensor; PVC membrane; citrate ion detection; SOFT DRINKS; PI-PI; ELECTRODES; NANOPARTICLES; PORPHYRINS; PLATINUM(II); BEVERAGES; GRAPHITE; GRAPHENE; SENSOR;
D O I：
10.3390/chemosensors11020108
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new sensing material, Pt(II)-5-(4-carboxyphenyl)-10,15,20-tris(4-phenoxyphenyl)-porphyrin (Pt(II)-COOH-TPOPP), was synthesized and characterized. Polymeric membranes containing the porphyrin and three different plasticizers were used as an electroactive material for a new anion-selective sensor. The best composition of the membrane was the one plasticized with dioctylsebacate (DOS), the obtained sensor being citrate-selective in a linear range of 5 x 10(-7)-1 x 10(-1) M citrate. The slope was Nernstian (19.73 mV/decade) with good selectivity towards a number of interfering anions and a lifetime of five weeks.
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页数：17
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