PMID- 25937106
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150630
LR  - 20150504
IS  - 1873-4324 (Electronic)
IS  - 0003-2670 (Linking)
VI  - 875
DP  - 2015 May 22
TI  - Air-assisted liquid-liquid microextraction by solidifying the floating organic 
      droplets for the rapid determination of seven fungicide residues in juice 
      samples.
PG  - 54-60
LID - S0003-2670(15)00409-2 [pii]
LID - 10.1016/j.aca.2015.03.033 [doi]
AB  - A novel air assisted liquid-liquid microextraction using the solidification of a 
      floating organic droplet method (AALLME-SFO) was developed for the rapid and 
      simple determination of seven fungicide residues in juice samples, using the gas 
      chromatography with electron capture detector (GC-ECD). This method combines the 
      advantages of AALLME and dispersive liquid-liquid microextraction based on the 
      solidification of floating organic droplets (DLLME-SFO) for the first time. In 
      this method, a low-density solvent with a melting point near room temperature was 
      used as the extraction solvent, and the emulsion was rapidly formed by pulling in 
      and pushing out the mixture of aqueous sample solution and extraction solvent for 
      ten times repeatedly using a 10-mL glass syringe. After centrifugation, the 
      extractant droplet could be easily collected from the top of the aqueous samples 
      by solidifying it at a temperature lower than the melting point. Under the 
      optimized conditions, good linearities with the correlation coefficients (gamma) 
      higher than 0.9959 were obtained and the limits of detection (LOD) varied between 
      0.02 and 0.25 mugL(-1). The proposed method was applied to determine the target 
      fungicides in juice samples and acceptable recoveries ranged from 72.6% to 114.0% 
      with the relative standard deviations (RSDs) of 2.3-13.0% were achieved. Compared 
      with the conventional DLLME method, the newly proposed method will neither 
      require a highly toxic chlorinated solvent for extraction nor an organic 
      dispersive solvent in the application process; hence, it is more environmentally 
      friendly.
CI  - Copyright (c) 2015 Elsevier B.V. All rights reserved.
FAU - You, Xiangwei
AU  - You X
AD  - Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 
      266101, People's Republic of China; College of Science, China Agricultural 
      University, Beijing 100193, People's Republic of China.
FAU - Xing, Zhuokan
AU  - Xing Z
AD  - College of Science, China Agricultural University, Beijing 100193, People's 
      Republic of China.
FAU - Liu, Fengmao
AU  - Liu F
AD  - College of Science, China Agricultural University, Beijing 100193, People's 
      Republic of China. Electronic address: liufengmao@cau.edu.cn.
FAU - Zhang, Xu
AU  - Zhang X
AD  - College of Science, China Agricultural University, Beijing 100193, People's 
      Republic of China.
LA  - eng
PT  - Journal Article
DEP - 20150325
PL  - Netherlands
TA  - Anal Chim Acta
JT  - Analytica chimica acta
JID - 0370534
OTO - NOTNLM
OT  - Air-assisted liquid-liquid microextraction
OT  - Floating organic droplet
OT  - Fungicide residues
OT  - Juice
EDAT- 2015/05/06 06:00
MHDA- 2015/05/06 06:01
CRDT- 2015/05/05 06:00
PHST- 2014/11/03 00:00 [received]
PHST- 2015/03/01 00:00 [revised]
PHST- 2015/03/22 00:00 [accepted]
PHST- 2015/05/05 06:00 [entrez]
PHST- 2015/05/06 06:00 [pubmed]
PHST- 2015/05/06 06:01 [medline]
AID - S0003-2670(15)00409-2 [pii]
AID - 10.1016/j.aca.2015.03.033 [doi]
PST - ppublish
SO  - Anal Chim Acta. 2015 May 22;875:54-60. doi: 10.1016/j.aca.2015.03.033. Epub 2015 
      Mar 25.