PMID- 16444680
OWN - NLM
STAT- MEDLINE
DCOM- 20060606
LR  - 20151119
IS  - 0951-4198 (Print)
IS  - 0951-4198 (Linking)
VI  - 20
IP  - 4
DP  - 2006
TI  - Simultaneous determination of 109 pesticides in unpolished rice by a combination 
      of gel permeation chromatography and Florisil column purification, and gas 
      chromatography/mass spectrometry.
PG  - 609-17
AB  - A multi-residue method is described for the simultaneous analysis of 109 
      pesticides with different properties in unpolished rice. The range covers 
      organophosphorus, organochlorine, carbamate, and synthetic pyrethroid pesticides. 
      The pesticides were extracted from the sample using ethyl acetate. Most higher 
      molecular weight components such as lipids in the co-extractives were removed by 
      gel permeation chromatography (GPC) with a Bio-bead SX-3 column. A Florisil 
      column with ethyl acetate/hexane as the eluting solvents was used for further 
      cleanup. The pesticides were finally simultaneously determined by gas 
      chromatography/mass spectrometry (GC/MS) in selective ion monitoring (SIM) mode. 
      The average recoveries for most pesticides (spiked level 0.02, 0.1 and 1 
      microg/g) ranged from 70% to 110%, the relative standard deviation (RSD) was 
      below 20% in every case, and the limit of detection (LOD) varied from 1 to 20 
      ng/g.
CI  - Copyright 2006 John Wiley & Sons, Ltd.
FAU - Zhang, Wei-Guo
AU  - Zhang WG
AD  - College of Science, China Agricultural University, Beijing 100094, PR China.
FAU - Chu, Xiao-Gang
AU  - Chu XG
FAU - Cai, Hui-Xia
AU  - Cai HX
FAU - An, Juan
AU  - An J
FAU - Li, Chong-Jiu
AU  - Li CJ
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Rapid Commun Mass Spectrom
JT  - Rapid communications in mass spectrometry : RCM
JID - 8802365
RN  - 0 (Magnesium Silicates)
RN  - 0 (Pesticide Residues)
RN  - 1343-88-0 (Florisil)
SB  - IM
MH  - Chromatography, Gel/instrumentation
MH  - Food Analysis
MH  - Gas Chromatography-Mass Spectrometry
MH  - Magnesium Silicates/*chemistry
MH  - Oryza/*chemistry
MH  - Pesticide Residues/*analysis/chemistry/*isolation & purification
EDAT- 2006/01/31 09:00
MHDA- 2006/06/07 09:00
CRDT- 2006/01/31 09:00
PHST- 2006/01/31 09:00 [pubmed]
PHST- 2006/06/07 09:00 [medline]
PHST- 2006/01/31 09:00 [entrez]
AID - 10.1002/rcm.2341 [doi]
PST - ppublish
SO  - Rapid Commun Mass Spectrom. 2006;20(4):609-17. doi: 10.1002/rcm.2341.