Determination of Aluminum in Natural Waters and Drinking Waters by Alternating Current Oscillopolarography Using Solochrome Violet RS / 分析化学
Chinese Journal of Analytical Chemistry
;
(12): 212-215, 2001.
Artículo
en Chino
| WPRIM
| ID: wpr-411080
ABSTRACT
A simple and reliable electroanalytical method for the fast determination of aluminum in natural and drinking waters by a. c. oscillopolarography using solochrome violet RS(SVRS) is described. The alkaline buffer solution used was 0.85 mol/L NH3·H2O- NH4 Cl(pH 8.8) containing 5 × 10-5 mol/L SVRS. A sensitive incision due to the redox reaction of Al-SVRS complex adsorption wave on the Hg-film electrode was observed on the dE/dtE oscillogram at - 1.05 V. The incision depth was linearly proportional to the A1 concentration in the range of 1 ×10-7 ~6 × 10-6 mol/L. No serious interference was found. The detection limit of this method was 5 × 10-8 mol/L,and the relative standard deviation was 5.5% for 2 × 10-7 mol/L Al ( n = 10). This method was successfully applied to the determination Al in 22 real samples. The results were found to be in good agreement with those obtained by inductively coupled plasma-atomic emission spectrometry.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Chinese Journal of Analytical Chemistry
Año:
2001
Tipo del documento:
Artículo
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