Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1350, Issue -, Pages 23-29Publisher
ELSEVIER
DOI: 10.1016/j.chroma.2014.05.026
Keywords
Molecularly imprinted polymers; Water-compatible; Triazines; Solid phase extraction; Water sample
Funding
- National Natural Science Foundation of China [21307052, 21175158]
- Natural Science Foundation of Shandong Province of China [ZR2013BL006]
- Scholarhip Award for Excellent Doctoral Student - Ministry of Education of China
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In the present work, double water compatible molecularly imprinted polymers (DWC-MIPs) with water compatible core and hydrophilic polymer brushes were prepared by reversible addition-fragmentation chain transfer precipitate polymerization (RAFTPP) and applied as solid-phase extraction (SPE) sorbent for selective preconcentration and specific recognition of triazines in water samples. The DWC-MIPs employed as SPE sorbent presented much higher extraction efficiency for four triazines in aqueous media based on the double water compatible property. The validated method was also successfully applied to tap water and river water sample analysis, and satisfactory recoveries were attained, such as 69.2-95.4% with the precision of 1.59-3.94% for four triazines at 100 p.,g L-1. The DWC-MIPs-SPE proves to be a highly effective cleanup and enrichment method for simultaneous separation and sensitive determination of triazines in complicated water samples. (c) 2014 Elsevier B.V. All rights reserved.
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