PMID- 17113589
OWN - NLM
STAT- MEDLINE
DCOM- 20070227
LR  - 20090115
IS  - 0021-9673 (Print)
IS  - 0021-9673 (Linking)
VI  - 1139
IP  - 2
DP  - 2007 Jan 19
TI  - Direct determination of chlorophenols in environmental water samples by hollow 
      fiber supported ionic liquid membrane extraction coupled with high-performance 
      liquid chromatography.
PG  - 165-70
AB  - The 1-octyl-3-methylimidazolium hexafluorophosphate ([C8MIM][PF6]) ionic liquid 
      was immobilized in the pores of a polypropylene hollow fiber for hollow 
      fiber-protected liquid-phase microextraction. Analytes including 4-chlorophenol 
      (4-CP), 3-chorophenol (3-CP), 2,4-dichlorophenol (2,4-DCP) and 
      2,4,6-trichlorophenol (2,4,6-TCP) were extracted into this ionic liquid membrane, 
      and back extracted into 10microL sodium hydroxide acceptor solution in the lumen 
      of the hollow fiber. Then, the acceptor solution was withdrawn into the 
      high-performance liquid chromatography (HPLC) microsyringe connected to the 
      hollow fiber, and directly injected into the HPLC system for analysis. Some 
      parameters that might affect the extraction efficiency were optimized, and low 
      detection limits (0.5microgL(-1) for 4-CP, 3-CP, DCP and 1.0microgL(-1) for TCP) 
      were obtained. Good repeatability was achieved because of the stability of the 
      hollow fiber-supported ionic liquid membrane. The proposed procedure was applied 
      for direct determination of the four chlorophenols in some real water samples 
      including groundwater, river water, wastewater and tap water. All of the four 
      chlorophenols in these water samples were under the limits of determination, and 
      the recoveries were in the range of 70.0-95.7% at 5microgL(-1) spiked level.
FAU - Peng, Jin-Feng
AU  - Peng JF
AD  - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research 
      Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 
      2871, Beijing 100085, China.
FAU - Liu, Jing-Fu
AU  - Liu JF
FAU - Hu, Xia-Lin
AU  - Hu XL
FAU - Jiang, Gui-Bin
AU  - Jiang GB
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20061120
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Chlorophenols)
RN  - 0 (Ionic Liquids)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Chlorophenols/*analysis
MH  - Chromatography, High Pressure Liquid/*methods
MH  - Ionic Liquids/*chemistry
MH  - Membranes/chemistry
MH  - Solid Phase Extraction/methods
MH  - Water Pollutants, Chemical/*analysis
MH  - Water Supply/*analysis
EDAT- 2006/11/23 09:00
MHDA- 2007/02/28 09:00
CRDT- 2006/11/23 09:00
PHST- 2006/07/12 00:00 [received]
PHST- 2006/11/02 00:00 [revised]
PHST- 2006/11/03 00:00 [accepted]
PHST- 2006/11/23 09:00 [pubmed]
PHST- 2007/02/28 09:00 [medline]
PHST- 2006/11/23 09:00 [entrez]
AID - S0021-9673(06)02110-8 [pii]
AID - 10.1016/j.chroma.2006.11.006 [doi]
PST - ppublish
SO  - J Chromatogr A. 2007 Jan 19;1139(2):165-70. doi: 10.1016/j.chroma.2006.11.006. 
      Epub 2006 Nov 20.