Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Development of on-line molecularly imprinted solid phase extraction-liquid chromatography-mass spectrometry for triazine analysis in corn samples

Full text
Author(s):
Andrade, Felipe Nascimento [1] ; Domingues Nazario, Carlos Eduardo [1] ; Santos-Neto, Alvaro Jose [1] ; Lancas, Fernando Mauro [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Chem Sao Carlos, Postal Code 780, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: ANALYTICAL METHODS; v. 8, n. 5, p. 1181-1186, 2016.
Web of Science Citations: 18
Abstract

A highly selective method for the analysis of triazine herbicides in corn samples based on molecularly imprinted solid phase extraction (MISPE) has been developed. Molecularly imprinted polymers (MIPs) were synthesized by precipitation polymerization using atrazine as a template, methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a crosslinker, and 2,2'-azobis-isobutrynitrile as an initiator. MISPE was developed for the on-line and automated enrichment of atrazine, simazine, terbutryn, simetryn and ametryn from corn sample extracts. High-performance liquid chromatography and time-of-flight mass spectrometry were used for the separation and confident determination of the herbicides. The limits of detection and quantitation of the proposed method were set to be 1.6-3.3 mu g kg(-1) and 5.0-10.0 mu g kg(-1). The method was successfully applied for the analysis of five types of corns and the recoveries of the triazines from the spiked samples ranged from 80.2 to 119.1%. (AU)

FAPESP's process: 11/09898-4 - Development of molecularly imprinted polymer and use for the sample preparation and analysis of triazine and sulfonylurea in maize using high performance liquid chromatography (HPLC).
Grantee:Felipe Nascimento Andrade
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 14/07347-9 - Development of novel materials and devices for miniaturized sample preparation techniques in the area of food safety
Grantee:Fernando Mauro Lanças
Support Opportunities: Regular Research Grants