{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T15:47:20Z","timestamp":1770997640720,"version":"3.50.1"},"reference-count":16,"publisher":"Wiley","issue":"13","license":[{"start":{"date-parts":[[2016,5,6]],"date-time":"2016-05-06T00:00:00Z","timestamp":1462492800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Electrophoresis"],"published-print":{"date-parts":[[2016,7]]},"abstract":"<jats:p>Aiming to introduce a multiresidue analysis for the trace detection of pesticide residues belonging to organophosphorus and triazine classes from olive oil samples, a new sample preparation methodology comprising the use of a dual layer of \u201ctailor\u2010made\u201d molecularly imprinted polymers (MIPs) SPE for the simultaneous extraction of both pesticides in a single procedure has been attempted. This work has focused on the implementation of a dual MIP\u2010layer SPE procedure (DL\u2010MISPE) encompassing the use of two MIP layers as specific sorbents. In order to achieve higher recovery rates, the amount of MIP layers has been optimized as well as the influence of MIP packaging order. The optimized DL\u2010MISPE approach has been used in the preconcentration of spiked organic olive oil samples with concentrations of dimethoate and terbuthylazine similar to the maximum residue limits and further quantification by HPLC. High recovery rates for dimethoate (95%) and terbuthylazine (94%) have been achieved with good accuracy and precision. Overall, this work constitutes the first attempt on the development of a dual pesticide residue methodology for the trace analysis of pesticide residues based on molecular imprinting technology. Thus, DL\u2010MISPE constitutes a reliable, robust, and sensitive sample preparation methodology that enables preconcentration of the target pesticides in complex olive oil samples, even at levels similar to the maximum residue limits enforced by the legislation.<\/jats:p>","DOI":"10.1002\/elps.201600073","type":"journal-article","created":{"date-parts":[[2016,4,10]],"date-time":"2016-04-10T14:03:38Z","timestamp":1460297018000},"page":"1916-1922","source":"Crossref","is-referenced-by-count":16,"title":["Dual\u2010layer solid\u2010phase extraction based on molecular imprinting technology: Seeking a route to enhance selectivity for trace analysis of pesticide residues in olive oil"],"prefix":"10.1002","volume":"37","author":[{"given":"Raquel","family":"Garcia","sequence":"first","affiliation":[{"name":"ICAAM \u2013 Instituto de Ci\u00eancias Agr\u00e1rias e Ambientais Mediterr\u00e2nicas, IIFA Universidade de \u00c9vora  \u00c9vora Portugal"},{"name":"LAQV, REQUIMTE, Departamento de Qu\u00edmica, Faculdade de Ci\u00eancias e Tecnologia Universidade Nova de Lisboa  Caparica Portugal"}]},{"given":"Elisabete P.","family":"Carreiro","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica de \u00c9vora, IIFA Universidade de \u00c9vora  \u00c9vora Portugal"}]},{"given":"Jos\u00e9","family":"Nunes","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica de \u00c9vora, IIFA Universidade de \u00c9vora  \u00c9vora Portugal"}]},{"given":"Marco Gomes","family":"da Silva","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE, Departamento de Qu\u00edmica, Faculdade de Ci\u00eancias e Tecnologia Universidade Nova de Lisboa  Caparica Portugal"}]},{"given":"Ana Maria Costa","family":"Freitas","sequence":"additional","affiliation":[{"name":"Departamento de Fitotecnia, Escola de Ci\u00eancias e Tecnologia, ICAAM Universidade de \u00c9vora  \u00c9vora Portugal"}]},{"given":"Anthony 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