PMID- 30081991
OWN - NLM
STAT- MEDLINE
DCOM- 20181219
LR  - 20181219
IS  - 1000-8020 (Print)
IS  - 1000-8020 (Linking)
VI  - 47
IP  - 4
DP  - 2018 Jul
TI  - [Determination of pesticide residues in substitutional tea by dispersive 
      solid-phase extraction and gas chromatography-triple quadrupole mass 
      spectrometry].
PG  - 621-627
AB  - OBJECTIVE: The method was established for determination 14 kinds of psticide 
      residues in substitutional tea using gas chromatography-triple quadrupole mass 
      spectrometry( GC-MS/MS) for instrument method and dispersive solid-phase 
      extraction( dSPE) for sample preparation. METHODS: The samples extracted with 
      acetonitrile, and purified by N-propyl ethlene diamine( PSA), the extracts were 
      separated on DB-5MS column( 30 m x 0. 25 mm, 0. 25 mum) with programmed 
      temperature and determined by GCMS/MS in multi-reaction monitoring( MRM) model. 
      The external standard method was applied to quantify the pesticides. RESULTS: The 
      method showed a good linearity( r >/=0. 999) in certain ranges for 14 kinds of 
      pesticides. The limits of quantification( LOQ)were 4-40 mug/kg. The average 
      recoveries range were 65. 6%-116. 6% in three add levels of 20, 40 and 200 mug/kg, 
      and relative standard deviations( RSD S) of 1. 5%-15. 7%( n = 6). CONCLUSION: 
      This method is simple, fast, sensitive, selective and can satisfy the request of 
      simultaneous analysis of multiple pesticide residues in substitutional tea.
FAU - Li, Ye
AU  - Li Y
AD  - Beijing Xicheng District Center for Disease Control and Prevention, Beijing 
      100120, China.
FAU - Zhao, Danying
AU  - Zhao D
AD  - Beijing Xicheng District Center for Disease Control and Prevention, Beijing 
      100120, China.
FAU - Guo, Aihua
AU  - Guo A
AD  - Beijing Xicheng District Center for Disease Control and Prevention, Beijing 
      100120, China.
FAU - Wen, Ya
AU  - Wen Y
AD  - Beijing Xicheng District Center for Disease Control and Prevention, Beijing 
      100120, China.
FAU - Li, Kun
AU  - Li K
AD  - Beijing Xicheng District Center for Disease Control and Prevention, Beijing 
      100120, China.
FAU - Wu, Guohua
AU  - Wu G
AD  - Beijing Xicheng District Center for Disease Control and Prevention, Beijing 
      100120, China.
LA  - chi
PT  - Journal Article
PL  - China
TA  - Wei Sheng Yan Jiu
JT  - Wei sheng yan jiu = Journal of hygiene research
JID - 9426367
RN  - 0 (Pesticide Residues)
RN  - 0 (Tea)
SB  - IM
MH  - Food Contamination/analysis
MH  - Gas Chromatography-Mass Spectrometry/*methods
MH  - Pesticide Residues/*analysis
MH  - Solid Phase Extraction/*methods
MH  - Tandem Mass Spectrometry/*methods
MH  - Tea/*chemistry
OTO - NOTNLM
OT  - QuEChERS
OT  - gas chromatography-triple quadrupole mass spectrometry
OT  - pesticide residues
OT  - substitutional tea
EDAT- 2018/08/08 06:00
MHDA- 2018/12/20 06:00
CRDT- 2018/08/08 06:00
PHST- 2018/08/08 06:00 [entrez]
PHST- 2018/08/08 06:00 [pubmed]
PHST- 2018/12/20 06:00 [medline]
PST - ppublish
SO  - Wei Sheng Yan Jiu. 2018 Jul;47(4):621-627.