Determination of Pyrethroids in Tea Brew by GC-MS Combined with SPME with Multiwalled Carbon Nanotube Coated Fiber
Joint Authors
Ren, Dongxia
Sun, Chengjun
Ma, Guanqun
Yang, Danni
Zhou, Chen
Xie, Jiayu
Li, Yongxin
Source
International Journal of Analytical Chemistry
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-08
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Ren, Dongxia& Sun, Chengjun& Ma, Guanqun& Yang, Danni& Zhou, Chen& Xie, Jiayu…[et al.]. 2018. Determination of Pyrethroids in Tea Brew by GC-MS Combined with SPME with Multiwalled Carbon Nanotube Coated Fiber. International Journal of Analytical Chemistry،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1166522
Modern Language Association (MLA)
Ren, Dongxia…[et al.]. Determination of Pyrethroids in Tea Brew by GC-MS Combined with SPME with Multiwalled Carbon Nanotube Coated Fiber. International Journal of Analytical Chemistry No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1166522
American Medical Association (AMA)
Ren, Dongxia& Sun, Chengjun& Ma, Guanqun& Yang, Danni& Zhou, Chen& Xie, Jiayu…[et al.]. Determination of Pyrethroids in Tea Brew by GC-MS Combined with SPME with Multiwalled Carbon Nanotube Coated Fiber. International Journal of Analytical Chemistry. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1166522
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1166522