PMID- 25124227
OWN - NLM
STAT- MEDLINE
DCOM- 20150205
LR  - 20181202
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1360
DP  - 2014 Sep 19
TI  - Ionic liquid-assisted liquid-phase microextraction based on the solidification of 
      floating organic droplets combined with high performance liquid chromatography 
      for the determination of benzoylurea insecticide in fruit juice.
PG  - 47-56
LID - S0021-9673(14)01181-9 [pii]
LID - 10.1016/j.chroma.2014.07.076 [doi]
AB  - A green, simple, and efficient method, ionic liquid-assisted liquid-liquid 
      microextraction based on the solidification of floating organic droplets 
      (ILSFOD-LLME) collected via a bell-shaped collection device (BSCD) coupled to 
      high performance liquid chromatography with a variable-wavelength detector, was 
      developed for the preconcentration and analysis of seven benzoylurea insecticides 
      (BUs) in fruit juice. In the proposed method, the low-density solvent 1-dodecanol 
      and the ionic liquid trihexyl(tetradecyl)phosphonium hexafluorophosphate ([P14, 
      6, 6, 6]PF6) were used as extractant. The extraction solvent droplet was easily 
      collected and separated by the BSCD without centrifugation. The experimental 
      parameters were optimized by the one-factor-at-a-time approach and were followed 
      using an orthogonal array design. The results indicated the different effects of 
      each parameter for extraction efficiency. Under the optimal conditions in the 
      water model, the limits of detection for the analytes varied from 0.03 to 
      0.28mugL(-1). The enrichment factors ranged from 160 to 246. Linearities were 
      achieved for hexaflumuron and flufenoxuron in the range of 0.5-500mugL(-1), for 
      triflumuron, lufenuron and diafenthiuron in the range of 1-500mugL(-1), and for 
      diflubenzuron and chlorfluazuron in the range of 5-500mugL(-1); the correlation 
      coefficients for the BUs ranged from 0.9960 to 0.9990 with recoveries of 
      75.6-113.9%. Finally, the developed technique was successfully applied to real 
      fruit juice with acceptable results. The relative standard deviations (RSDs) of 
      the seven BUs at two spiked levels (50 and 200mugL(-1)) varied between 0.1% and 
      7.3%.
CI  - Copyright (c) 2014 Elsevier B.V. All rights reserved.
FAU - Yang, Miyi
AU  - Yang M
AD  - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West 
      Road 2#, Haidian District, Beijing 100193, China.
FAU - Zhang, Panjie
AU  - Zhang P
AD  - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West 
      Road 2#, Haidian District, Beijing 100193, China.
FAU - Hu, Lu
AU  - Hu L
AD  - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West 
      Road 2#, Haidian District, Beijing 100193, China.
FAU - Lu, Runhua
AU  - Lu R
AD  - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West 
      Road 2#, Haidian District, Beijing 100193, China.
FAU - Zhou, Wenfeng
AU  - Zhou W
AD  - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West 
      Road 2#, Haidian District, Beijing 100193, China.
FAU - Zhang, Sanbing
AU  - Zhang S
AD  - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West 
      Road 2#, Haidian District, Beijing 100193, China.
FAU - Gao, Haixiang
AU  - Gao H
AD  - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West 
      Road 2#, Haidian District, Beijing 100193, China. Electronic address: 
      hxgao@cau.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140801
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Benzamides)
RN  - 0 (Insecticides)
RN  - 0 (Ionic Liquids)
RN  - 0 (Phenylurea Compounds)
RN  - 0 (Pyridines)
RN  - 178A96NLP2 (Dodecanol)
RN  - 4GW50R449T (hexafluoron)
RN  - 8W8T17847W (Urea)
RN  - OD068OSS0N (flufenoxuron)
RN  - Q42JG8449K (chlorfluazuron)
SB  - IM
MH  - Benzamides/analysis
MH  - Beverages/*analysis
MH  - Chromatography, High Pressure Liquid/*methods
MH  - Dodecanol/analysis
MH  - Fruit/*chemistry
MH  - Insecticides/*analysis
MH  - Ionic Liquids/*chemistry
MH  - Liquid Phase Microextraction/*methods
MH  - Phenylurea Compounds/analysis
MH  - Pyridines/analysis
MH  - Urea/*analysis
OTO - NOTNLM
OT  - Benzoylurea insecticides
OT  - High performance liquid chromatography
OT  - Ionic liquid
OT  - Solidification of floating organic droplet microextraction
EDAT- 2014/08/16 06:00
MHDA- 2015/02/06 06:00
CRDT- 2014/08/16 06:00
PHST- 2014/02/21 00:00 [received]
PHST- 2014/07/19 00:00 [revised]
PHST- 2014/07/24 00:00 [accepted]
PHST- 2014/08/16 06:00 [entrez]
PHST- 2014/08/16 06:00 [pubmed]
PHST- 2015/02/06 06:00 [medline]
AID - S0021-9673(14)01181-9 [pii]
AID - 10.1016/j.chroma.2014.07.076 [doi]
PST - ppublish
SO  - J Chromatogr A. 2014 Sep 19;1360:47-56. doi: 10.1016/j.chroma.2014.07.076. Epub 
      2014 Aug 1.