PMID- 23016295
OWN - NLM
STAT- MEDLINE
DCOM- 20130809
LR  - 20190923
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 30
IP  - 6
DP  - 2012 Jun
TI  - [Analysis of 112 pesticide residues in vegetables using dispersive-solid phase 
      extraction and gas chromatography-triple quadrupole mass spectrometry].
PG  - 602-12
AB  - A method was developed and validated for the simultaneous analysis of 112 
      pesticide residues in vegetables by gas chromatography coupled with triple 
      quadrupole mass spectrometry (GC-QQQ-MS/MS). It is demonstrated that the 
      optimized conditions could provide a more accurate quantitation and lower limit 
      of quantification of the analysis by dispersive-solid phase extraction (D-SPE) 
      cleanup. The samples were extracted with acetonitrile and toluene (8: 1, v/v), 
      and cleaned up by D-SPE. To every 5 mL extraction solution, 0.8 g MgSO4, 0.05 g 
      graphitized carbon black (GCB), 0.1 g ethylenediamine-N-propyl silyl (PSA) and 
      0.05 g C18 were added. The extracts were analyzed by GC-QQQ-MS/MS using internal 
      standard method. The recoveries of the 112 pesticides at three spiked levels of 
      20, 50 and 200 microg/kg were ranged from 53.1% to 138.7%, and among which those 
      of 86 pesticides were from 65.0% to 120.0%. The relative standard deviations 
      (RSD) were less than 12%. The limits of quantifications (LOQs) (signal/noise at 
      10) were between 1.6 and 13.4 microg/kg. The vegetable samples collected from the 
      market such as garlic chives, cucumber and purple cabbage were analyzed, and the 
      residues of triazophos and fenpropathrin were detected in some of these samples. 
      The method can be applied to the routine analysis for the determination of the 
      112 pesticides in vegetable samples.
FAU - Shi, Jiawei
AU  - Shi J
AD  - Nigbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for 
      Disease Control and Prevention, Ningbo 315010, China. shijw@nbcdc.org.cn
FAU - Li, Jige
AU  - Li J
FAU - Wang, Yufei
AU  - Wang Y
FAU - Fan, Jianzhong
AU  - Fan J
LA  - chi
PT  - English Abstract
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Pesticide Residues)
SB  - IM
MH  - Food Contamination/*analysis
MH  - Gas Chromatography-Mass Spectrometry/*methods
MH  - Pesticide Residues/*analysis
MH  - Solid Phase Extraction/*methods
MH  - Vegetables/*chemistry
EDAT- 2012/09/29 06:00
MHDA- 2013/08/10 06:00
CRDT- 2012/09/29 06:00
PHST- 2012/09/29 06:00 [entrez]
PHST- 2012/09/29 06:00 [pubmed]
PHST- 2013/08/10 06:00 [medline]
AID - 10.3724/sp.j.1123.2012.02019 [doi]
PST - ppublish
SO  - Se Pu. 2012 Jun;30(6):602-12. doi: 10.3724/sp.j.1123.2012.02019.