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Development and validation of a chromatographic method by ion chelation with pulsed amperometric detection for the sequential determination of Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn in biodiesel

Grant number: 10/05015-8
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): September 01, 2010
Effective date (End): October 31, 2012
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal researcher:Lauro Tatsuo Kubota
Grantee:Jailson Cardoso Dias
Home Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:08/53868-0 - Synthesis and chacterization of novel materials strategically structured and organized to be applied in analytical and photonic devices, AP.TEM


The general context of this research project is inserted in the area of development of analytical methods for the determination of inorganic contaminants in (bio)fuels. Specifically, the presented proposal aims to stimulate the creation of new standards for a more rigorous quality control of the biodiesel by means of the more refined knowledge of its composition through the development of a new sensitive and selective analytical method, based on the technique of high performance chelation ion chromatography with pulsed amperometric detection (HPCIC-PAD), for the sequential determination of metallic elements that are still not considered in the current official specifications, such as Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn, which favour the oxidation of the biodiesel. The analytical strategy to be applied for the development of the method proposed here will include the detailed study of the various factors involved in the process of chromatographic separation and amperometric detection through the univariate optimization procedures. Moreover, the effect of the organic matrix of the biodiesel will be evaluated in order to establish a simple and efficient method for the sample preparation. After the optimization steps of the analytical conditions, the performance of the method will be investigated through the validation process, including the determination of the following analytical parameters: linearity, range of application, sensitivity, detectability, precision, accuracy and robustness. The set of desired results should provide solidity such that allowing the use of the developed method in the quality control of the biodiesel. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DIAS, JAILSON C.; KUBOTA, LAURO T.; NESTERENKO, PAVEL N.; HADDAD, PAUL R. Chelidamic Acid as a New Eluent for the Determination of Fe(II) and Fe(III) Species and Other Metals by High Performance Chelation Ion Chromatography. Chromatographia, v. 75, n. 15-16, p. 867-873, AUG 2012. Web of Science Citations: 6.

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