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Full text | |
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) |