PMID- 17400037
OWN - NLM
STAT- MEDLINE
DCOM- 20070830
LR  - 20220318
IS  - 1570-0232 (Print)
IS  - 1570-0232 (Linking)
VI  - 853
IP  - 1-2
DP  - 2007 Jun 15
TI  - Simultaneous determination of 102 pesticide residues in Chinese teas by gas 
      chromatography-mass spectrometry.
PG  - 154-62
AB  - An efficient and sensitive method for simultaneous determination of 102 pesticide 
      residues in teas has been established and validated. The multi-residue analysis 
      of the pesticides in teas involved extraction with acetone-ethyl acetate-hexane, 
      clean-up using gel permeation chromatography (GPC) and solid-phase extraction 
      (SPE), and subsequent identification and quantification of the selected 
      pesticides by gas chromatography-mass spectrometry (GC-MS) under retention time 
      locked (RTL) conditions. For most of the target analytes, the optimized 
      pretreatment processes led to no significant interference on analysis from sample 
      matrix, and the determination of 102 compounds was achieved in about 120 min. 
      Pesticide residues could be determined in low sub-ppb range, from 0.01 microg/mL 
      for hexachlorobenzene to 2.5 microg/mL for propargite, with average recoveries 
      ranging from 59.7 to 120.9% (mean 88%) and relative standard deviations (RSDs) in 
      the range 3.0-20.8% (mean 13.7%) for all analytes across three fortification tea 
      levels. The limits of detection (LODs) were much lower than the maximum residue 
      levels established by the European Union (EU) legislations.
FAU - Huang, Zhiqiang
AU  - Huang Z
AD  - State Key Laboratory of Chemo/Biological Sensing & Chemometrics, Hunan 
      University, Changsha 410082, PR China.
FAU - Li, Yongjun
AU  - Li Y
FAU - Chen, Bo
AU  - Chen B
FAU - Yao, Shouzhuo
AU  - Yao S
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20070318
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 (Pesticide Residues)
RN  - 0 (Tea)
SB  - IM
MH  - Gas Chromatography-Mass Spectrometry/*methods
MH  - Pesticide Residues/*analysis
MH  - Reproducibility of Results
MH  - Tea/*chemistry
EDAT- 2007/04/03 09:00
MHDA- 2007/08/31 09:00
CRDT- 2007/04/03 09:00
PHST- 2006/06/03 00:00 [received]
PHST- 2007/03/02 00:00 [revised]
PHST- 2007/03/06 00:00 [accepted]
PHST- 2007/04/03 09:00 [pubmed]
PHST- 2007/08/31 09:00 [medline]
PHST- 2007/04/03 09:00 [entrez]
AID - S1570-0232(07)00198-5 [pii]
AID - 10.1016/j.jchromb.2007.03.013 [doi]
PST - ppublish
SO  - J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Jun 15;853(1-2):154-62. doi: 
      10.1016/j.jchromb.2007.03.013. Epub 2007 Mar 18.