Title of article :
Ionic Associates of Fuschine Basic Dye as Sensing Probe for Potentiometric Determination of 2,4-Dichlorophenoxy- and 4-Chlorophenoxy Acetic Acids
Author/Authors :
Kormosh, Zholt Department of Chemistry - Ecology and Pharmacy - Lesya Ukrainka Volyn National University - Lutsk, Ukraine , Mittal, Susheel K School of Chemistry and Biochemistry - Thapar Institute of Engg and Technology (Deemed University) - Patiala, India , Tkach, Volodymyr Department of Organic and Physical Chemistry Chernivtsi National University - Kotsyubyns´ky Str. 2 - Chernivtsi, Ukraine , Yurchenko, Oksana Department of Chemistry - Ecology and Pharmacy - Lesya Ukrainka Volyn National University - Lutsk, Ukraine
Abstract :
Ionic associates of basic fuchsin have been used as an electrochemical sensing probe for the potentiometric determination of 2,4-
dichlorophenoxyacetic acid (2,4-D) and 4-chlorophenoxyacetic acid (4-CPA). The influence of the membrane composition on the
electroanalytical characteristics of the electrodes has been established. The effect of the modifying additive (N,N,N',N'-
tetramethylethylenediamine) on the chemical and analytical characteristics of the electrodes is shown. The sensors can be used for the
determination of 2,4-D (4-CPA) in an analytical range of 1 × 10-4 to 3 × 10-2 M with LOD as 10-5 M. For 2,4-D ISE, a hyper-Nernstian
function was observed. The sensors have been applied for the determination of 4-CPA and 2,4-D in model solutions of pesticide
preparations.
Keywords :
2,4-Dichlorophenoxyacetic acid , 4-Chlorophenoxyacetic acid , Potentiometry , Ion-selective electrodes , Modifying additives
Journal title :
Analytical and Bioanalytical Chemistry Research
