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

Electric Field-Assisted Solid Phase Extraction: Devices, Development and Application with a Cationic Model Compound

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Author(s):
Orlando, Ricardo Mathias [1] ; Rodrigues Rohwedder, Jarbas Jose [1] ; Rath, Susanne [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, Dept Analyt Chem, Inst Chem, BR-13084971 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Chromatographia; v. 77, n. 1-2, p. 133-143, JAN 2014.
Web of Science Citations: 10
Abstract

This work describes novel devices for electric field-assisted solid phase extraction (E-SPE) and an application was carried out on the antimicrobial marbofloxacin (MAR). Conventional syringe-type SPE cartridges were easily adapted to receive two electrodes that were inserted and positioned below and above the sorbent. The adapted cartridges were coupled to a flow extraction system, which consisted of an electrophoresis power supply, a peristaltic pump and a homemade SPE manifold. These devices were used to apply electric fields during the extraction of MAR from fortified buffer and milk samples. The recovery of MAR was improved (2.3 times) or reduced (4.2 times) in comparison to conventional SPE when the top electrode was used as cathode (E-SPE(-/+)) or anode (E-SPE(+/-)), respectively. The results demonstrated that usual SPE cartridges can be easily and inexpensively adapted for applying an electric field in SPE. It was also concluded that the electric field applied in a usual SPE cartridge can be employed as a new suitable approach to enhance the extraction efficiency of ionic compounds in a complex sample matrix. (AU)

FAPESP's process: 08/03064-1 - Application of electric potential in solid phase extraction procedures
Grantee:Susanne Rath
Support Opportunities: Regular Research Grants
FAPESP's process: 07/07079-0 - Application of electric potentials in procedures of solid phase extration
Grantee:Ricardo Mathias Orlando
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 11/11595-0 - EXPANDING THE FRONTIERS OF E-SPE ®: DEVELOPMENT AND EVALUATION OF A SEMI-AUTOMATED SYSTEM
Grantee:Ricardo Mathias Orlando
Support Opportunities: Scholarships in Brazil - Post-Doctoral