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Development of a γ ‐alumina‐ nanoparticle‐functionalized porous polymer monolith for the enrichment of S udan dyes in red wine samples (J. Sep. Science 36'20)
Author(s) -
Li Wanjun,
Zhou Xiao,
Ye Juanjuan,
Jia Qiong
Publication year - 2013
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201370191
Subject(s) - monolith , polymer , polymerization , porosity , chemical engineering , nanoparticle , materials science , extraction (chemistry) , chromatography , chemistry , nanotechnology , composite material , organic chemistry , catalysis , engineering
DOI: 10.1002/jssc.201300754 Monolithic materials were synthesized in capillaries by in situ polymerization . With γ‐Al 2 o 3 nanoparticles attached to the surface of the porous monolith via epoxide groups, a novel polymer monolith microextraction material was prepared with good mechanical stability and high extraction capacity. The SEM micrographs clearly demonstrated that the pores and size of the microglobules in modified monolith were smaller than those in unmodified monolith, implying that γ‐Al 2 o 3 nanoparticles increased the mechanical stability of the modified monolith. In addition, a new method was developed for the analysis of Sudan dyes using polymer monolith microextraction coupled with HPLC.