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Preparation of porous carbon-based molecularly imprinted polymers for separation of triazine herbicides in corn.
Yin, Ran; Gao, Lei; Qin, Dongli; Chen, Ligang; Niu, Na.
Afiliación
  • Yin R; Key Laboratory of Forest Plant Ecology, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China.
  • Gao L; Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China.
  • Qin D; Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 232 Hesong Street, Harbin, 150040, China.
  • Chen L; Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 232 Hesong Street, Harbin, 150040, China.
  • Niu N; Key Laboratory of Forest Plant Ecology, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China. analchem@nefu.edu.cn.
Mikrochim Acta ; 189(1): 23, 2021 12 10.
Article en En | MEDLINE | ID: mdl-34893943
A synthesis route of using cellulose as the precursor to prepare porous carbon (PC) had been established in this study. The as-prepared PC was introduced as carriers in the synthesis process of porous carbon-molecularly imprinted polymers (PC-MIPs), which greatly improved the absorption capacity of MIPs. Triazine pesticides in corn were extracted with matrix solid-phase dispersion (MSPD) using the PC-MIPs as dispersants and determined by ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Under the optimal MSPD condition for extracting six kinds of triazines (simazine, terbutryn, simetryne, prometryne, ametryn, and atrazine), the detection limits were 0.005-0.02 ng g-1, while the precisions were 1.2-5.9%, and the recoveries were 92.6-104.7%. The method has been extensively applied to analyze various corn samples. Atrazine residue (1.2 µg kg-1) was detected in one corn sample, which was lower than the maximum residual limit indicated by the Chinese stated standards (50 µg kg-1).
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Triazinas / Zea mays / Extracción en Fase Sólida / Polímeros Impresos Molecularmente / Herbicidas Idioma: En Revista: Mikrochim Acta Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Austria

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Triazinas / Zea mays / Extracción en Fase Sólida / Polímeros Impresos Molecularmente / Herbicidas Idioma: En Revista: Mikrochim Acta Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Austria