PMID- 29903138
OWN - NLM
STAT- MEDLINE
DCOM- 20181211
LR  - 20181211
IS  - 1000-8020 (Print)
IS  - 1000-8020 (Linking)
VI  - 45
IP  - 5
DP  - 2016 Sep
TI  - [Determination of chlorfenapyr and indoxacarb in tea by gas chromatography-mass 
      spectrometry with solid phase extraction].
PG  - 817-820
AB  - OBJECTIVE: To establish a method for simultaneous determination of chlorfenapyr 
      and indoxacarb in tea by gas chromatography-mass spectrometry. METHODS: The tea 
      samples were homogenized and extracted with acetonitrile. Extracts obtained 
      through centrifugation were cleaned up by CARB / NH2 cartridges, and further 
      purified with SLH cartridges. After separated by DB-5MS capillary column( 30 m x 
      0. 25 mm x 0. 25mum), the analytes were measured by gas chromatography-mass 
      spectrometry in selective ion monitoring( SIM) mode and quantified by external 
      standard method. RESULTS: The linear range was 0. 10- 10 mug / m L for both of the 
      two pesticides. The detection limits of chlorfenapyr and indoxacarb in tea 
      samples were 0. 01 and 0. 008 mg / kg, and the quantitation limits were 0. 03 and 
      0. 025 mg / kg, respectively. The recoveries were from75. 6% to 92. 7%, and the 
      relative standarddeviations( RSDs) were 3. 6%- 11. 4%( n =6). CONCLUSION: The 
      proposed method has good purification effect and high accuracy, which is capable 
      for simultaneously detecting the chlorfenapyr and indoxacarb in tea samples.
FAU - Zhou, Hua
AU  - Zhou H
AD  - College of Public Health, Zhejiang University, Hangzhou 310058, China.
FAU - Zhang, Yun
AU  - Zhang Y
AD  - College of Public Health, Zhejiang University, Hangzhou 310058, China.
FAU - Wu, Pinggu
AU  - Wu P
AD  - College of Public Health, Zhejiang University, Hangzhou 310058, China.
FAU - Zhang, Zhehua
AU  - Zhang Z
AD  - College of Public Health, Zhejiang University, Hangzhou 310058, China.
FAU - Jing, Wan'er
AU  - Jing W
AD  - College of Public Health, Zhejiang University, Hangzhou 310058, China.
FAU - Chen, Weiguo
AU  - Chen W
AD  - College of Public Health, Zhejiang University, Hangzhou 310058, 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 (Oxazines)
RN  - 0 (Pesticide Residues)
RN  - 0 (Pyrethrins)
RN  - 0 (Tea)
RN  - 52H0D26MWR (indoxacarb)
RN  - NWI20P05EB (chlorfenapyr)
SB  - IM
MH  - *Gas Chromatography-Mass Spectrometry
MH  - Humans
MH  - Oxazines/analysis/*isolation & purification
MH  - Pesticide Residues
MH  - Pyrethrins/analysis/*isolation & purification
MH  - *Solid Phase Extraction
MH  - Tea/*chemistry
OTO - NOTNLM
OT  - chlorfenapyr
OT  - gas chromatography-mass spectrometry
OT  - indoxacarb
OT  - solid phase extraction
OT  - tea
EDAT- 2016/09/01 00:00
MHDA- 2016/09/01 00:01
CRDT- 2018/06/16 06:00
PHST- 2018/06/16 06:00 [entrez]
PHST- 2016/09/01 00:00 [pubmed]
PHST- 2016/09/01 00:01 [medline]
PST - ppublish
SO  - Wei Sheng Yan Jiu. 2016 Sep;45(5):817-820.