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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Evaluation of inorganic and organic contaminants in alcohol fuel by capillary electrophoresis

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Author(s):
Elisabete A. Pereira [1] ; Marina F. M. Tavares [2] ; Alessandra Stevanato [3] ; Arnaldo A. Cardoso [4]
Total Authors: 4
Affiliation:
[1] Universidade de São Paulo. Instituto de Química
[2] Universidade de São Paulo. Instituto de Química
[3] Universidade Estadual Paulista. Instituto de Química
[4] Universidade Estadual Paulista. Instituto de Química
Total Affiliations: 4
Document type: Journal article
Source: Química Nova; v. 29, n. 1, p. 66-71, 2006-02-00.
Abstract

This work reports the analysis of inorganic and organic contaminants in alcohol fuel samples using capillary electrophoresis. Chloride and sulfate were analyzed in nitrate/ monochloroacetic acid at 10 mmol L-1 concentration each under indirect UV detection (210 nm). The analysis of aldehydes is based on the 216 nm detection of 3-methyl-2-benzothiazoline hydrazone adducts. The running buffer consisted of 20 mmol L-1 tetraborate , 40 mmol L-1 sodium dodecyl sufate and 12 mmol L-1 beta-ciclodextrin. Both methodologies were applied to real samples indicating inorganic ion concentrations from 0.15 to 6.64 mg kg-1 and aldehydes from 32.0 to 91.3 mg L-1. (AU)