PMID- 21962667
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20120120
LR  - 20111003
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 85
IP  - 5
DP  - 2011 Oct 15
TI  - Evaluation of a magnetic polysulfone microcapsule containing organic modified 
      montmorillonite as a novel solid-phase extraction sorbent with chlorophenols as 
      model compounds.
PG  - 2451-7
LID - 10.1016/j.talanta.2011.07.106 [doi]
AB  - A porous polysulfone microcapsule containing organic modified montmorillonite and 
      magnetic nanoparticles (OMMT-Fe(3)O(4)@PSF) has been successfully prepared by a 
      phase-inversion method and evaluated as a magnetic solid-phase extraction (MSPE) 
      sorbent for clean-up and enrichment of 4-chlorophenol (4-CP) and 2-chlorophenol 
      (2-CP) in aqueous samples. Compared with a microcapsule containing the 
      conventional extraction sorbent C18 (C18-Fe(3)O(4)@PSF), OMMT-Fe(3)O(4)@PSF had 
      much lower cost, a faster adsorption rate, and superior uptake amounts for the 
      investigated analytes. The proposed microcapsule has been developed for the 
      extraction of 4-CP and 2-CP from environmental water samples and their analysis 
      by high-performance liquid chromatography with UV detection (HPLC-UV). Various 
      parameters, such as pH, extraction time, the mass of sorbent, and the desorption 
      conditions, have been evaluated and the calibration curves of the chlorophenols 
      were linear (R(2) >/= 0.9985) in the range from 1.01 to 104.5 ng mL(-1). The limits 
      of detection at a signal-to-noise (S/N) ratio of 3 were 0.22 and 0.17 ng mL(-1) 
      and the limits of quantification calculated at S/N=10 were 1.52 and 1.07 ng 
      mL(-1) for 2-CP and 4-CP, respectively. The recoveries of 2-CP and 4-CP from 
      natural water and the treated wastewater samples were in the range of 84.4-115% 
      with relative standard deviations (RSDs) lower than 7.0%. The results have 
      demonstrated the suitability of the MSPE approach for the analysis of trace 
      chlorophenols in aqueous samples.
CI  - Copyright (c) 2011 Elsevier B.V. All rights reserved.
FAU - Liu, Xiaoyan
AU  - Liu X
AD  - State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 
      730000, China.
FAU - Yin, Juanjuan
AU  - Yin J
FAU - Zhu, Ling
AU  - Zhu L
FAU - Zhao, Guanghui
AU  - Zhao G
FAU - Zhang, Haixia
AU  - Zhang H
LA  - eng
PT  - Journal Article
DEP - 20110809
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
EDAT- 2011/10/04 06:00
MHDA- 2011/10/04 06:01
CRDT- 2011/10/04 06:00
PHST- 2011/05/18 00:00 [received]
PHST- 2011/07/25 00:00 [revised]
PHST- 2011/07/28 00:00 [accepted]
PHST- 2011/10/04 06:00 [entrez]
PHST- 2011/10/04 06:00 [pubmed]
PHST- 2011/10/04 06:01 [medline]
AID - S0039-9140(11)00700-4 [pii]
AID - 10.1016/j.talanta.2011.07.106 [doi]
PST - ppublish
SO  - Talanta. 2011 Oct 15;85(5):2451-7. doi: 10.1016/j.talanta.2011.07.106. Epub 2011 
      Aug 9.