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Química Nova

Print version ISSN 0100-4042On-line version ISSN 1678-7064

Abstract

CAMPOS, Camila D. M. et al. PREPARO DE AMOSTRAS ASSISTIDO POR CAMPO ELÉTRICO: FUNDAMENTOS, AVANÇOS, APLICAÇÕES E TENDÊNCIAS. Quím. Nova [online]. 2015, vol.38, n.8, pp.1093-1106. ISSN 1678-7064.  http://dx.doi.org/10.5935/0100-4042.20150130.

Sample preparation is commonly considered a key step to achieve selective, sensitive, and reliable chemical analyses, particularly those involving complex matrices. Although the application of electric fields to improve the speed and efficiency of sample preparation methods has been proven, this approach is still considered to be state-of-the-art; hence, further development is necessary to improve future applications. This review describes the fundamentals, advances, applications, and perspectives of using electric fields to enhance sample preparation techniques such as liquid-liquid and solid-liquid extractions in conventional and microscale devices.

Keywords : sample preparation; electroextraction; electromigration; electric field; preconcentration.

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