Chloride Ion-Selective Electrode with Solid-Contact Based on Polyaniline Nanofibers and Multiwalled Carbon Nanotubes Nanocomposite

被引：20

作者：

Pietrzak, Karolina ^{[1
]}

Morawska, Klaudia ^{[1
]}

Malinowski, Szymon ^{[2
]}

Wardak, Cecylia ^{[1
]}

机构：

[1] Marie Curie Sklodowska Univ, Inst Chem Sci, Fac Chem, Dept Analyt Chem, Maria Curie Sklodowska Sq 3, PL-20031 Lublin, Poland

[2] Lublin Univ Technol, Fac Civil Engn & Architecture, Nadbystrzycka 40, PL-20618 Lublin, Poland

来源：

MEMBRANES | 2022年 / 12卷 / 11期

关键词：

ion-selective electrodes; solid-contact; nanofibers; nanocomposite; potentiometry; chlorides; POTENTIAL STABILITY; MEMBRANE ELECTRODES; CONDUCTING POLYMERS; SODIUM; NANOPARTICLES; NANOMATERIALS;

D O I：

10.3390/membranes12111150

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Use of the nanocomposite of chloride-doped polyaniline nanofibers and multiwalled carbon nanotubes (PANINFs-Cl:MWCNTs) for construction of ion-selective electrodes with solid-contact sensitive to chloride ions has been described. Many types of electrodes were tested, differing in the quantitative and qualitative composition of the layer placed between the electrode material and the ion-selective membrane. Initial tests were carried out, including tests of electrical properties of intermediate solid-contact layers. The obtained ion-selective electrodes had a theoretical slope of the electrode characteristic curve (-61.3 mV dec(-1)), a wide range of linearity (5 x 10(-6)-1 x 10(-1) mol L-1) and good potential stability resistant to changing measurement conditions (redox potential, light, oxygen). The chloride contents in the tap, mineral and river water samples were successfully determined using the electrodes.

引用

页数：17

共 49 条

[1] A novel chloride selective potentiometric sensor based on graphitic carbon nitride/silver chloride (g-C3N4/AgCl) composite as the sensing element [J].