Simultaneous quantitative analysis of the acetate, formate, chloride, phosphate and sulfate anions in biodiesel by ion chromatography

FUEL

卷:124

Article

Cardoso Silveira, Eva Lucia¹  de Caland, Lilia Basilio¹  Tubino, Matthieu¹ 

[1] Univ Estadual Campinas, Inst Chem, BR-13083970 Campinas, SP, Brazil

关键词: Biodiesel;    Anion;    Ion chromatography;    Quantitative analysis;    Green method;   

DOI  :  10.1016/j.fuel.2014.01.095

来源: Elsevier

【 摘 要 】

A quantitative ion chromatographic analytical method for the simultaneous determination of the acetate, formate, chloride, phosphate, and sulfate anions in biodiesel is proposed. Samples of biodiesels prepared from soy, canola and sunflower vegetable oils, from crude soy oil, and from bovine fat were analyzed. The extraction of the anions from the matrixes was performed using water with the assistance of ultrasound. The observed limits of detection and of quantitation in mg kg(-1) and the mean relative standard deviation in percent were, respectively: acetate, 0.32, 0.97 and 4.4; formate, 1.36, 4.12 and 6.2; chloride, 0.098, 0.30 and 6.5; phosphate, 0.81, 2.47 and 7.1; and sulfate, 0.087, 0.264 and 7.8. The procedure can be considered to be green because it uses small volumes of water, is simple, and can be performed rapidly. (C) 2014 Elsevier Ltd. All rights reserved.

【 授权许可】

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