PMID- 29707002
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200930
IS  - 1687-8760 (Print)
IS  - 1687-8779 (Electronic)
IS  - 1687-8760 (Linking)
VI  - 2018
DP  - 2018
TI  - Determination of Pyrethroids in Tea Brew by GC-MS Combined with SPME with 
      Multiwalled Carbon Nanotube Coated Fiber.
PG  - 8426598
LID - 10.1155/2018/8426598 [doi]
LID - 8426598
AB  - A new method has been developed to simultaneously determine 7 pyrethroid residues 
      in tea brew using gas chromatography-mass spectrometry (GC-MS) combined with 
      solid phase microextraction (SPME) with multiwalled carbon nanotubes (MWCNTs) 
      coated fiber. The MWCNTs coated fiber of SPME was homemade by using stainless 
      steel wire as coating carrier and polyacrylonitrile (PAN) solution as adhesive 
      glue. Under the optimized conditions, a good linearity was shown for bifenthrin, 
      fenpropathrin, permethrin, and cyfluthrin in 1-50 ng mL(-1) and for cypermethrin, 
      fenvalerate, and deltamethrin in 5-50 ng mL(-1). The correlation coefficients 
      were in the range of 0.9948-0.9999. The average recoveries of 7 pyrethroids were 
      94.2%-107.3% and the relative standard deviations (RSDs) were less than 15%. The 
      detection limit of the method ranged from 0.12 to 1.65 ng mL(-1). The tea brew 
      samples made from some commercial tea samples were analyzed. Among them, 
      bifenthrin, fenpropathrin, and permethrin were found. The results show that the 
      method is rapid and sensitive and requires low organic reagent consumption, which 
      can be well used for the detection of the pyrethroids in tea brew.
FAU - Ren, Dongxia
AU  - Ren D
AD  - West China School of Public Health, Sichuan University, Chengdu 610041, China.
FAU - Sun, Chengjun
AU  - Sun C
AD  - West China School of Public Health, Sichuan University, Chengdu 610041, China.
AD  - Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of 
      Sichuan, Chengdu 610041, China.
FAU - Ma, Guanqun
AU  - Ma G
AD  - College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, 
      China.
FAU - Yang, Danni
AU  - Yang D
AD  - West China School of Public Health, Sichuan University, Chengdu 610041, China.
FAU - Zhou, Chen
AU  - Zhou C
AD  - West China School of Public Health, Sichuan University, Chengdu 610041, China.
FAU - Xie, Jiayu
AU  - Xie J
AD  - West China School of Public Health, Sichuan University, Chengdu 610041, China.
FAU - Li, Yongxin
AU  - Li Y
AUID- ORCID: 0000-0002-6040-3632
AD  - West China School of Public Health, Sichuan University, Chengdu 610041, China.
AD  - Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of 
      Sichuan, Chengdu 610041, China.
LA  - eng
PT  - Journal Article
DEP - 20180308
PL  - Egypt
TA  - Int J Anal Chem
JT  - International journal of analytical chemistry
JID - 101519424
PMC - PMC5863342
EDAT- 2018/05/01 06:00
MHDA- 2018/05/01 06:01
PMCR- 2018/03/08
CRDT- 2018/05/01 06:00
PHST- 2017/10/18 00:00 [received]
PHST- 2018/01/12 00:00 [revised]
PHST- 2018/02/08 00:00 [accepted]
PHST- 2018/05/01 06:00 [entrez]
PHST- 2018/05/01 06:00 [pubmed]
PHST- 2018/05/01 06:01 [medline]
PHST- 2018/03/08 00:00 [pmc-release]
AID - 10.1155/2018/8426598 [doi]
PST - epublish
SO  - Int J Anal Chem. 2018 Mar 8;2018:8426598. doi: 10.1155/2018/8426598. eCollection 
      2018.