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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.)

Electrochemical sensing using magnetic molecularly imprinted polymer particles previously captured by a magneto-sensor

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Author(s):
Ruiz-Cordova, Gerson A. [1, 2, 3] ; Khan, Sabir [1, 3] ; Goncalves, Luis Moreira [4, 5] ; Pividori, Maria Isabel [6] ; Picasso, Gino [2] ; Sotomayor, Maria Del Pilar T. [1, 3]
Total Authors: 6
Affiliation:
[1] UNESP Univ Estadual Paulista, Inst Chem, Dept Analyt Chem, Araraquara, SP - Brazil
[2] Natl Univ Engn, Fac Sci, Lab Phys Chem Res, Lima - Peru
[3] Natl Inst Alternat Technol Detect, Toxicol Evaluat & Removal Micropollutants & Radio, Araraquara, SP - Brazil
[4] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Sao Paulo, SP - Brazil
[5] Univ Porto, Fac Ciencias, REQUIMTE LAQV, Porto - Portugal
[6] Univ Autonoma Barcelona, Barcelona - Spain
Total Affiliations: 6
Document type: Journal article
Source: Talanta; v. 181, p. 19-23, MAY 1 2018.
Web of Science Citations: 7
Abstract

The determination of 1-chloro-2,4-dinitrobenzene (CDNB) was used as a proof-of-concept to a simple analytical practical configuration applying magnetic molecularly imprinted particles (mag-MIPs). Mag-MIPs were captured from an emulsion by a home-made magneto-sensor (where a small magnet was entrapped by a graphite-epoxy composite) and then, this sensor, was transferred to the solution containing the analyte, where, after binding to the mag-MIPs, the analyte was directly analysed using differential pulse voltammetry (DPV) since the magneto sensor acted as the working electrode. After optimization, a detection limit of 6.0 mu mol L-1 with a RSD of 2.7% was achieved along with suitable recoveries and selectivity. This methodology offers a different approach for electroanalytical methodologies using mag-MIPs. (AU)

FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
Grantee:Maria Valnice Boldrin
Support type: Research Projects - Thematic Grants
FAPESP's process: 16/06926-0 - Development and application of new nanostructured chemical sensors and applications of new nanostructured chemical sensors based on biomimetic polymers
Grantee:Maria Del Pilar Taboada Sotomayor
Support type: Research Grants - Visiting Researcher Grant - International
FAPESP's process: 14/25264-3 - Development and application of new nanoestructurated chemical sensors based on biomimetic polymers
Grantee:Maria Del Pilar Taboada Sotomayor
Support type: Regular Research Grants