RAPID DETERMINATIONS OF COMPLEXING STABILITY-CONSTANTS BY GRADIENT FLOW-INJECTION TITRATION

被引：5

作者：

DACONCEICAO, AC ^{[1
]}

GONCALVES, MLSS ^{[1
]}

DOSSANTOS, MMC ^{[1
]}

机构：

[1] Univ Tecn Lisboa, CTR QUIM ESTRUTURAL, INST SUPER TECN, P-1096 LISBON, PORTUGAL

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 302卷 / 01期

关键词：

FLOW INJECTION; TITRIMETRY; COMPLEXING STABILITY CONSTANTS;

D O I：

10.1016/0003-2670(94)00434-N

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The use of rapid gradient flow-injection titration for the determination of equilibrium constants in solution, previously used in pK measurements of monobasic and multibasic weak acids is extended to the more demanding case of metal complexation. Formation constants for the complexes ML and ML(2) of Cd2+ with glycine have been determined by that technique using potentiometric detection with a glass electrode. Under optimum conditions formation constants in good agreement with batch and literature values are obtained in several minutes.

引用

页码：97 / 102

页数：6

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[8] AN INTEGRATED GRADIENT CHAMBER AND POTENTIOMETRIC DETECTOR FOR FLOW-INJECTION ANALYSIS .1. ASSESSMENT OF THE SYSTEM [J].

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ANALYTICA CHIMICA ACTA, 1989, 226 (02) :229-238

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