GROWTH OF COMPACT LAYERS AT THE INTERFACE .6. ADSORPTION PROPERTIES OF DIFENZOQUAT HERBICIDE (1,2-DIMETHYL-3,5-DIPHENYL-PYRAZOLIUM)

被引：12

作者：

POSPISIL, L ^{[1
]}

HANZLIK, J ^{[1
]}

FUOCO, R ^{[1
]}

FANELLI, N ^{[1
]}

机构：

[1] CNR, IST CHIM ANALIT STRUMENTALE, I-56100 PISA, ITALY

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1992年 / 334卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(92)80580-W

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The adsorption properties of 1,2-dimethyl-3,5-diphenyl-pyrazolium cation (difenzoquat) on the mercury electrode in aqueous medium are given. Strong adsorption is detectable at concentrations below 10(-6) mol/l and in a wide potential range. The time dependence of the electrode impedance indicates the formation of a compact film controlled by nucleation/growth phenomena. Under specific conditions the film has a fractal character connected with the existence of a constant phase element. An adsorptive stripping method can be worked out for its sensitive determination.

引用

页码：309 / 321

页数：13

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