Synthesis and Evaluation of Molecularly Imprinted Polymers for the Determination of Di(2-ethylhexyl) Phthalate (DEHP) in Water Samples

被引：3

作者：

Diaz de Leon-Martinez, Lorena ^{[1
]}

Melendez-Marmolejo, Jessica ^{[1
]}

Vargas-Berrones, Karla ^{[1
]}

Flores-Ramirez, Rogelio ^{[2
]}

机构：

[1] Ctr Invest Aplicada Ambiente & Salud CIAAS, Colonia Lomas Segunda Secc, Ave Sierra Leona 550, San Luis Potosi 78210, Slp, Mexico

[2] CONACYT, Coordinac Innovac & Aplicac Ciencia Tecnol CIACYT, Ave Sierra Leona 550, San Luis Potosi CP 78210, SLP, Mexico

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2020年 / 105卷 / 05期

关键词：

Molecularly imprinted polymer; Non-imprinted polymer; Di(2-ethylhexyl) phthalate; Drinking water; SOLID-PHASE MICROEXTRACTION; EXTRACTION; ESTERS; ADSORPTION; BINDING;

D O I：

10.1007/s00128-020-03023-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A molecularly imprinted polymer for the selective determination of Di(2-ethylhexyl) phthalate (DEHP) in water was synthesized and evaluated. This was accomplished by the use of sodium methacrylate as the monomer, toluene as a porogen, ethylene glycol dimethacrylate as a crosslinker, azobisisobutyronitrile as initiator and DEHP as a template molecule to generate the selectivity of the polymer for the compound, as well as synthesizing non-imprinted polymers. Three different polymerization approaches were used, emulsion, bulk and co-precipitation, the polymers obtained by emulsion presented a high retention rate reaching 99%. The method was able to pre-concentrate DEHP in water samples up to 250 times. To evaluate the applicability of the method, concentrations in fortified and bottled water were assessed using our polymer and determining DEHP concentrations by gas chromatography with mass spectrometry. Reported concentrations in bottled water were 12.1 mu g/L, well above reference values established by the U.S. Environmental Protection Agency.

引用

页码：806 / 812

页数：7

共 23 条

[1]

[Anonymous], 2016, NAT APP A SUBP 0 141

[2] Optimization of the class-selective extraction of triazines from aqueous samples using a molecularly imprinted polymer by a comprehensive approach of the retention mechanism [J].