PMID- 25660523
OWN - NLM
STAT- MEDLINE
DCOM- 20150625
LR  - 20181202
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1385
DP  - 2015 Mar 13
TI  - The comparison of dispersive solid phase extraction and multi-plug filtration 
      cleanup method based on multi-walled carbon nanotubes for pesticides 
      multi-residue analysis by liquid chromatography tandem mass spectrometry.
PG  - 1-11
LID - S0021-9673(15)00152-1 [pii]
LID - 10.1016/j.chroma.2015.01.066 [doi]
AB  - In this study, dispersive-Solid Phase Extraction (d-SPE) cleanup and multi-plug 
      filtration cleanup (m-PFC) methods were compared for 25 representative pesticides 
      in six matrices (wheat, spinach, carrot, apple, citrus and peanut) by 
      QuEChERS-LC-ESI-MS/MS detection. The type of sorbents in dispersive-SPE (d-SPE) 
      was optimized for the above matrices. Multi-walled carbon nanotubes (MWCNTs), 
      which mixed other materials like PSA (Primary Secondary Amines), GCB (Graphitized 
      Carbon Black) and C18 (Octadecyl-silica), showed brilliant cleanup performance in 
      multi residue monitoring (MRM) pesticide residue analysis. Cleanup effects with 
      d-SPE and m-PFC methods were examined. When spiked at 3 concentration levels of 
      10, 100, 500 mug/kg in above matrices, for both d-SPE and m-PFC methods, the 
      recoveries ranged from 70 to 110% with relative standard deviations (RSDs) lower 
      than 20%. Limits of quantification (LOQs) for both cleanup methods ranged from 1 
      to 25 mug/kg. Matrix-matched calibrations were performed with the coefficients of 
      determination more than 0.99 between concentration levels of 10-1000 mug/kg. It 
      was found that m-PFC was more convenient and effective than d-SPE with the same 
      sorbents, due to the increased contact time and contact area between the extracts 
      and compressed sorbents. The study demonstrated that m-PFC method could be used 
      as a rapid, convenient and high-throughput cleanup method for analysis of 
      pesticide residues.
CI  - Copyright (c) 2015 Elsevier B.V. All rights reserved.
FAU - Qin, Yuhong
AU  - Qin Y
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Zhao, Pengyue
AU  - Zhao P
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Fan, Sufang
AU  - Fan S
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Han, Yongtao
AU  - Han Y
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Li, Yanjie
AU  - Li Y
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Zou, Nan
AU  - Zou N
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Song, Shuangyu
AU  - Song S
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Zhang, Yuan
AU  - Zhang Y
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Li, Fangbing
AU  - Li F
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China.
FAU - Li, Xuesheng
AU  - Li X
AD  - Institute of Pesticide and Environmental Toxicology, Guangxi University, Nanning 
      530005, People's Republic of China.
FAU - Pan, Canping
AU  - Pan C
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, China; Institute of Pesticide and Environmental 
      Toxicology, Guangxi University, Nanning 530005, People's Republic of China. 
      Electronic address: canpingp@cau.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150128
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Nanotubes, Carbon)
RN  - 0 (Pesticide Residues)
SB  - IM
MH  - Chemistry Techniques, Analytical/*methods
MH  - *Chromatography, Liquid
MH  - Filtration
MH  - Food Contamination/*analysis
MH  - Limit of Detection
MH  - Nanotubes, Carbon/*chemistry
MH  - Pesticide Residues/*analysis
MH  - *Solid Phase Extraction
MH  - *Tandem Mass Spectrometry
OTO - NOTNLM
OT  - D-SPE
OT  - MWCNTs
OT  - Pesticide residue
OT  - QuEChERS
OT  - Vegetables and fruits
OT  - m-PFC
EDAT- 2015/02/11 06:00
MHDA- 2015/06/26 06:00
CRDT- 2015/02/10 06:00
PHST- 2014/10/24 00:00 [received]
PHST- 2014/12/31 00:00 [revised]
PHST- 2015/01/22 00:00 [accepted]
PHST- 2015/02/10 06:00 [entrez]
PHST- 2015/02/11 06:00 [pubmed]
PHST- 2015/06/26 06:00 [medline]
AID - S0021-9673(15)00152-1 [pii]
AID - 10.1016/j.chroma.2015.01.066 [doi]
PST - ppublish
SO  - J Chromatogr A. 2015 Mar 13;1385:1-11. doi: 10.1016/j.chroma.2015.01.066. Epub 
      2015 Jan 28.