Electrosynthesis of poly(m-phenylenediamine) on the nanocomposites of palygorskite and ionic liquid for electrocatalytic sensing of gallic acid

被引：35
作者：
Wang, Xueqing [1 ]
Tan, Wensheng [2 ]
Wang, Yong [3 ]
Wu, Datong [1 ]
Kong, Yong [1 ]
机构：
[1] Changzhou Univ, Sch Food Sci & Technol, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Changzhou 213164, Peoples R China
[2] Changzhou Coll Informat Technol, Changzhou Key Lab Large Plast Parts Intelligence, Changzhou 213164, Peoples R China
[3] Nanjing Municipal Publ Secur Bur, Inst Forens Sci, Nanjing 210012, Jiangsu, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2019年 / 284卷
关键词：
Poly(m-phenylenediamine); Palygorskite; Ionic liquid; Electrocatalytic sensing; Gallic acid; REDUCED GRAPHENE OXIDE; ONE-POT SYNTHESIS; ELECTROCHEMICAL SENSOR; ANTIOXIDANT CAPACITY; VOLTAMMETRIC DETERMINATION; CARBON ELECTRODE; TEMPERATURE; NANOPARTICLES; POLYANILINE; CATECHIN;
D O I：
10.1016/j.snb.2018.12.133
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this study, electrocatalytic sensing of gallic acid (GA) with poly(m-phenylenediamine) (PmPD) electrodeposited on the nanocomposites of palygorskite (Pal) and ionic liquid (IL) was reported. The PmPD/Pal-IL modified electrode showed a low limit of detection (LOD) of 0.28 mu M and a wide linear range from 1.0 mu M to 300 mu M for electrochemical sensing of GA due to the synergistic effects of PmPD, Pal and IL. That is to say, electrocatalysis of PmPD, preconcentration ability of Pal and ionic conductivity of IL contributed to the sensitive determination of GA. In addition, the fabricated PmPD/Pal-IL also exhibited high selectivity with little interferences from common organic compounds and inorganic cations, high storage stability and reproducibility in the determination of GA. Finally, the proposed GA sensor was applied in the determination of GA in real food samples, and the results demonstrated the potential of the prepared PmPD/Pal-IL as a promising GA sensor for rapid and accurate determination of GA in foodstuffs.
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收藏
页码：63 / 72
页数：10
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