New metalloporphyrazines as active components of membranes of anion-selective electrodes

被引：6
|
作者：
Shvedene, N. V. [1 ]
Otkidach, K. N. [1 ]
Gumerov, M. R. [1 ]
Tarakanov, P. A. [2 ]
Tomilova, L. G. [2 ]
机构：
[1] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia
[2] Russian Acad Sci, Inst Physiol Act Subst, Chernogolovka 142432, Moscow Region, Russia
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2015年 / 70卷 / 01期
关键词：
metalloporphyrazines; ion-selective electrodes; dihydrogen phosphate; benzylpenicillin; iodide; POTENTIOMETRIC SELECTIVITY; IONOPHORES; TETRAPHENYLPORPHYRIN; PHTHALOCYANINE; MN(III)TPP-CL; ADDITIVES; PVC;
D O I：
10.1134/S1061934815010177
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Nickel(II), manganese(III), and magnesium(II) porphyrazines are synthesized and investigated as active electrode components of polyvinyl chloride plasticized membranes for ion-selective electrodes (ISE). The potentiometric response of membranes based on metalloporphyrazines doped with 1,3-dihexadecylimidazolium chloride (ionic additive) relative to benzylpenicillin and iodide anions is studied. It is found that the introduction of the ionic additive significantly improves the electrochemical characteristics of the ISE: the slope of the electrode function in benzylpenicillinate solutions is (58 +/- 7) mV/dec and c (min) = 7 x 10(-5) M, and in iodide solutions, (55 +/- 2) mV/dec and c (min) = 6 x 10(-6) M. It is shown that the ISE based on manganese(III) porphyrazine with an ionic additive can be used to determine iodide in Iodinol preparation.
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页码：72 / 80
页数：9
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