Journal of Materials Science and Engineering with Advanced TechnologyAuthor's: Shuying Li, Haiyan Liu, Yun Zhang, Xiaoyan Zhang, Yang Wang and Gengliang Yang
Pages: [1] - [15]
Received Date: November 14, 2012, Revised December 16, 2012
Submitted by: Qingxiang Zhou.
A poly (N-isopropylacrylamide-co-vinyl ester resin) monolithic column
for HPLC was synthesized via a free-radical polymerization technique
and was used as a high selective sorbent for phenolic compounds. The
monolith showed excellent mechanical strength, permeability, and high
selectivity. 2-Amino-4-methylphenol, 4-nitrophenol, and 2,
4-dichlorophenol could be enriched by the monolithic column and
on-line analyzed by using RP-C18 column. Good linearity was obtained
from 0.06 to 
Precision for inter-and intra-day assay
showed acceptable results for quantitative assay with relative
standard deviation (RSD) less than 3.36%. The recoveries were higher
than 91.4% at three different concentrations and the limit of
detection of the method was 
The results indicated that the monolith
was feasible to be used as an on-line SPE sorbent material to enrich
phenolic compounds from solution.
poly (NIPAAm-co-vinyl ester resin), monolithic column, SPE, phenolic compounds.
