PMID- 21462339
OWN - NLM
STAT- MEDLINE
DCOM- 20110830
LR  - 20191210
IS  - 1615-9314 (Electronic)
IS  - 1615-9306 (Linking)
VI  - 34
IP  - 10
DP  - 2011 May
TI  - Ionic liquid-based dispersive liquid-liquid microextraction for sensitive 
      determination of aromatic amines in environmental water.
PG  - 1184-9
LID - 10.1002/jssc.201000912 [doi]
AB  - Ionic liquid-based dispersive liquid-liquid microextraction was developed for the 
      extraction and preconcentration of aromatic amine from environmental water. A 
      suitable mixture of extraction solvent (100 muL, 1-butyl-3-methylimidazolium 
      hexafluorophoshate) and dispersive solvent (750 muL, methanol) were injected into 
      the aqueous samples (10.00 mL), forming a cloudy solution. After centrifuging, 
      enriched analytes in the sediment phase were determined by HPLC-UV. The effect of 
      various factors, such as the extraction and dispersive solvent, sample pH, 
      extraction time and salt effect were investigated. Under optimum conditions, 
      enrichment factors for 2-anilinoethanol, o-chloroaniline and 
      4-bromo-N,N-dimethylaniline were above 50 and the limits of detection (LODs) were 
      0.023, 0.015 and 0.026 ng/mL, respectively. Their linear ranges were 0.8-400 
      ng/mL for 2-anilinoethanol, 0.5-200 ng/mL for o-chloroaniline and 0.4-200 ng/mL 
      for 4-bromo-N,N-dimethylaniline, respectively. Relative standard deviations 
      (RSDs) were below 5.0%. The relative recoveries from samples of environmental 
      water were in the range of 82.0-94.0%. Compared with other methods, dispersive 
      liquid-liquid microextraction is simple, rapid, sensitive and economical.
CI  - Copyright (c) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
FAU - Han, Dandan
AU  - Han D
AD  - Department of Chemical Engineering, Inha University, Incheon, Korea.
FAU - Yan, Hongyuan
AU  - Yan H
FAU - Row, Kyung H
AU  - Row KH
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20110401
PL  - Germany
TA  - J Sep Sci
JT  - Journal of separation science
JID - 101088554
RN  - 0 (Amines)
RN  - 0 (Ionic Liquids)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Amines/*analysis/*isolation & purification
MH  - Chemical Fractionation/instrumentation/*methods
MH  - Chromatography, High Pressure Liquid
MH  - Ionic Liquids/*chemistry
MH  - Water Pollutants, Chemical/*analysis/*isolation & purification
EDAT- 2011/04/05 06:00
MHDA- 2011/08/31 06:00
CRDT- 2011/04/05 06:00
PHST- 2010/12/20 00:00 [received]
PHST- 2011/02/19 00:00 [revised]
PHST- 2011/02/20 00:00 [accepted]
PHST- 2011/04/05 06:00 [entrez]
PHST- 2011/04/05 06:00 [pubmed]
PHST- 2011/08/31 06:00 [medline]
AID - 10.1002/jssc.201000912 [doi]
PST - ppublish
SO  - J Sep Sci. 2011 May;34(10):1184-9. doi: 10.1002/jssc.201000912. Epub 2011 Apr 1.