ALUMINUM PYROCATECHOL VIOLET REACTIVITY WITH VARIOUS COMPLEXING AGENTS

被引：16

作者：

KRAMER, JR

GLEED, J

GRACEY, K

机构：

[1] McMaster University, Department of Geology, Hamilton

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 284卷 / 03期

关键词：

SPECTROPHOTOMETRY; ALUMINUM; COMPLEXOMETRY; PYROCATECHOL VIOLET;

D O I：

10.1016/0003-2670(94)85065-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A spectrophotometric method for determining the speciation of aluminum using pyrocatechol violet (PCV) is tested on a series of known ligands over a range of concentrations and at two fixed pH values. The procedure assumes that the colorimetric signal is defined by the competition of the Al-ligand complex with Al-PCV. The stability constants determined are in agreement with literature values. Time to steady state is more than 10 min. A procedure for determining the conditional stability constant, the total ligand concentration and the reactive Al at a fixed pH is proposed.

引用

收藏

页码：599 / 604

页数：6

相关论文

共 17 条

[1] COLORIMETRIC ESTIMATION OF ALUMINUM WITH PYROCATECHOL VIOLET [J].

ANTON, A .

ANALYTICAL CHEMISTRY, 1960, 32 (06) :725-726

[2] KINETIC ASPECTS OF CHEMICAL SPECIATION [J].

BURGESS, J .

ANALYST, 1992, 117 (03) :605-611

[3] THE DETERMINATION OF QUICKLY REACTING ALUMINUM IN NATURAL-WATERS BY KINETIC DISCRIMINATION IN A FLOW SYSTEM [J].

CLARKE, N ;

DANIELSSON, LG ;

SPAREN, A .

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 1992, 48 (02) :77-100

[4] ABSORPTIOMETRIC DETERMINATION OF ALUMINUM IN WATER - COMPARISON OF SOME CHROMOGENIC REAGENTS AND DEVELOPMENT OF AN IMPROVED METHOD [J].

DOUGAN, WK ;

WILSON, AL .

ANALYST, 1974, 99 (1180) :413-430

[5] POTENTIOMETRIC INVESTIGATION OF COMPLEXES OF ALUMINUM WITH ORTHO DIPHENOLS, CHROMOTROPIC ACID AND ORTHO PHENOL CARBOXYLIC ACIDS [J].

HAVELKOVA, L ;

BARTUSEK, M .

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, 1969, 34 (12) :3722-+

[6] A SEMI-AUTOMATED COLORIMETRIC METHOD FOR THE DETERMINATION OF MONOMERIC ALUMINUM SPECIES IN NATURAL-WATERS BY FLOW-INJECTION ANALYSIS [J].

HENSHAW, JM ;

LEWIS, TE ;

HEITHMAR, EM .

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 1988, 34 (02) :119-135

[7] ALUMINUM SPECIATION - A COMPARISON OF 5 METHODS [J].

HODGES, SC .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1987, 51 (01) :57-64

[8]

KRAMER JR, 1986, P INT C CHEM ENV, P636

[9]

KWONG KFNK, 1979, SOIL SCI, V128, P337

[10] MEASUREMENT OF AQUEOUS ALUMINUM SPECIES - COMPARISON OF DIALYSIS AND ION-EXCHANGE TECHNIQUES [J].

LAZERTE, BD ;

CHUN, C ;

EVANS, D ;

TOMASSINI, F .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1988, 22 (09) :1106-1108