Abstract
In the NH4Cl supporting electrolyte, within the pH range from 1 to 5, an irreversible adsorptive reducing wave of salicyl fluorone(SAF) was obtained. The electrode process was verified as follow:
On the surface of mercury electrode, the adsorption of SAF obeys Frumkin isotherm.
In 0.2 mol/l potassium hydrogen phthalate/HCl buffer solution, at pH 3.0, the sensitive adsorptive complex wave of Ga-SAF was obtained by linear sweep voltammetry. The composition of the electroactive complex was determined as Ga:SAF = 1∶1. The peak height of the complex is proportional to the concentration of Ga(III) in the range of 1.5 × 10−9 to 6.0 × 10−7 mol/l, the detection limit is 1.0× 10−9 mol/l. The proposed method has been applied to the determination of gallium content in aluminium alloys.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
H. Shen,Metallurgical Analysis 1984,4, 49.
E. D. Moorhead, P. H. Davis,Anal. Chem. 1975,47, 622.
J. C. Yu, C. M. Wai,Anal. Chem. 1984,56, 1689.
W. Mickler, E. Uhlemann,Z. Chem. 1980,20, 352.
H. D. Sommer, F. Umland,Fresenius Z. Anal. Chem. 1980,301, 203.
J. Wng, J. M. Zadeii,Anal. Chem. Acta. 1986,185, 229.
N. Li, Y. Zhao, X. Gao,Huaxue Xuebao 1984,42, 1057.
E. Laviron,J. Electroanal. Chem. 1974,52, 355.
A. P. Brown, F. C. Anson,Anal. Chem. 1977,49, 1589.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Zhang, X., Chen, R., Wang, L. et al. Studies on the voltammetric behaviour of salicyl fluorone and gallium-salicyl fluorone complex. Mikrochim Acta 118, 213–219 (1995). https://doi.org/10.1007/BF01244361
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01244361