Rapid on-line microextraction method for the analysis of glyphosate in soy and pepper based on fiber-spray/mass spectrometry

Yea Wenn Liou, Sing Han Wang, Chih Han Hsu, Yu Ting Hsu, Chung Hsuan Chen, Chien Chung Chen, Cheng Huang Lin

Research output: Contribution to journalArticle

Abstract

We report on the design and testing of a rapid, on-line microextraction kit based on fiber-spray/mass spectrometry. The kit consists of a section of a porous-polypropylene hollow fiber, a serum bottle, a seal cap with a gasket and an electromagnetic stirrer. The kit is placed between the mass inlet and the ESI needle. Using this configuration, glyphosate can be extracted from a very dilute solution and then evaporates and escapes from the fiber surface. When glyphosate molecules make contact with the ESI plume, which arises from the ESI needle tip, they are ionized and then detected by a mass spectrometer. Using the setup, it was possible to improve the limit of detection for glyphosate after microextraction by ∼1000-fold, resulting in a limit of detection of 10 ppb.

Original languageEnglish
Pages (from-to)104-109
Number of pages6
JournalInternational Journal of Mass Spectrometry
Volume430
DOIs
Publication statusPublished - 2018 Jul 1

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glyphosate
peppers
kits
Mass spectrometry
sprayers
mass spectroscopy
needles
Needles
fibers
Fibers
Container closures
bottles
Polypropylenes
Bottles
Mass spectrometers
polypropylene
caps
serums
mass spectrometers
escape

Keywords

  • Fiber-spray/mass spectrometry
  • Glyphosate
  • Liquid phase microextraction
  • Porous-polypropylene hollow fiber

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

Cite this

Rapid on-line microextraction method for the analysis of glyphosate in soy and pepper based on fiber-spray/mass spectrometry. / Liou, Yea Wenn; Wang, Sing Han; Hsu, Chih Han; Hsu, Yu Ting; Chen, Chung Hsuan; Chen, Chien Chung; Lin, Cheng Huang.

In: International Journal of Mass Spectrometry, Vol. 430, 01.07.2018, p. 104-109.

Research output: Contribution to journalArticle

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