PMID- 26513135
OWN - NLM
STAT- MEDLINE
DCOM- 20160516
LR  - 20151106
IS  - 1873-376X (Electronic)
IS  - 1570-0232 (Linking)
VI  - 1005
DP  - 2015 Nov 15
TI  - Simultaneous determination of 70 pesticide residues in leek, leaf lettuce and 
      garland chrysanthemum using modified QuEChERS method with multi-walled carbon 
      nanotubes as reversed-dispersive solid-phase extraction materials.
PG  - 56-64
LID - S1570-0232(15)30221-X [pii]
LID - 10.1016/j.jchromb.2015.10.002 [doi]
AB  - Leek, leaf lettuce and garland chrysanthemum are troublesome vegetables 
      containing large amount of pigments which may bring serious matrix interferences 
      in mass spectrometry analysis. Multi-walled carbon nanotubes (MWCNTs) have a good 
      effect for the cleanup of troublesome matrix. So the study was designed to 
      develop a multi-residue method for the determination of 70 pesticide residues in 
      leek, leaf lettuce and garland chrysanthemum based on a modified QuEChERS 
      procedure using MWCNTs as reversed-dispersive solid phase extraction (r-DSPE) 
      materials to remove the interferences of pigments. PSA and GCB were used as 
      comparison. LC-MS/MS was used to identify and quantify the residue levels of 
      multi-pesticides. The clean-up performance of MWCNTs was demonstrated to be 
      obviously superior to GCB and PSA. This method was validated on leek, leaf 
      lettuce and garland chrysanthemum spiked at the concentration of 10, 50 and 
      100mugkg(-1) with five replicates. The recoveries of 70 pesticides ranged from 74% 
      to 119%, with relative standard deviations (RSDs) lower than 14.2%. Good 
      linearity (R(2)>/=0.9903) was obtained at the range of 10-1000mug/L for all 
      pesticides in the selected matrices. The limit of quantification (LOQs) and limit 
      of detection (LODs) of the 70 pesticides for the selected matrices ranged from 
      0.3 to 7.9mugkg(-1) and from 0.1 to 2.4mugkg(-1) respectively. The method was 
      successfully applied to the routine monitoring of pesticide residues in market 
      samples.
CI  - Copyright (c) 2015 Elsevier B.V. All rights reserved.
FAU - Han, Yongtao
AU  - Han Y
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, PR China.
FAU - Zou, Nan
AU  - Zou N
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, PR China.
FAU - Song, Le
AU  - Song L
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, PR China.
FAU - Li, Yanjie
AU  - Li Y
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, PR China.
FAU - Qin, Yuhong
AU  - Qin Y
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, PR China.
FAU - Liu, Shaowen
AU  - Liu S
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, PR China.
FAU - Li, Xuesheng
AU  - Li X
AD  - Institute of Pesticide and Environmental Toxicology, Guangxi University, Nanning 
      530005, PR China.
FAU - Pan, Canping
AU  - Pan C
AD  - Department of Applied Chemistry, College of Science, China Agricultural 
      University, Beijing 100193, PR China; Institute of Pesticide and Environmental 
      Toxicology, Guangxi University, Nanning 530005, PR China. Electronic address: 
      canpingp@cau.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20151017
PL  - Netherlands
TA  - J Chromatogr B Analyt Technol Biomed Life Sci
JT  - Journal of chromatography. B, Analytical technologies in the biomedical and life 
      sciences
JID - 101139554
RN  - 0 (Nanotubes, Carbon)
RN  - 0 (Pesticide Residues)
SB  - IM
MH  - Asteraceae/*chemistry
MH  - Chromatography, Liquid/methods
MH  - Limit of Detection
MH  - Linear Models
MH  - Nanotubes, Carbon/*chemistry
MH  - Onions/*chemistry
MH  - Pesticide Residues/*analysis
MH  - Reproducibility of Results
MH  - Solid Phase Extraction/*methods
MH  - Tandem Mass Spectrometry/methods
MH  - Vegetables/*chemistry
OTO - NOTNLM
OT  - LC-MS/MS
OT  - MWCNTs
OT  - Pesticide residues
OT  - QuEChERS
OT  - r-DSPE
EDAT- 2015/10/30 06:00
MHDA- 2016/05/18 06:00
CRDT- 2015/10/30 06:00
PHST- 2015/05/13 00:00 [received]
PHST- 2015/08/14 00:00 [revised]
PHST- 2015/10/05 00:00 [accepted]
PHST- 2015/10/30 06:00 [entrez]
PHST- 2015/10/30 06:00 [pubmed]
PHST- 2016/05/18 06:00 [medline]
AID - S1570-0232(15)30221-X [pii]
AID - 10.1016/j.jchromb.2015.10.002 [doi]
PST - ppublish
SO  - J Chromatogr B Analyt Technol Biomed Life Sci. 2015 Nov 15;1005:56-64. doi: 
      10.1016/j.jchromb.2015.10.002. Epub 2015 Oct 17.