Food Chemistry 2016-03-01

Gas chromatography-vacuum ultraviolet spectroscopy for analysis of fatty acid methyl esters.

Hui Fan, Jonathan Smuts, Ling Bai, Phillip Walsh, Daniel W Armstrong, Kevin A Schug

Index: Food Chem. 194 , 265-71, (2015)

Full Text: HTML

Abstract

A new vacuum ultraviolet (VUV) detector for gas chromatography was recently developed and applied to fatty acid methyl ester (FAME) analysis. VUV detection features full spectral acquisition in a wavelength range of 115-240nm, where virtually all chemical species absorb. VUV absorption spectra of 37 FAMEs, including saturated, monounsaturated, and polyunsaturated types were recorded. Unsaturated FAMEs show significantly different gas phase absorption profiles than saturated ones, and these classes can be easily distinguished with the VUV detector. Another advantage includes differentiating cis/trans-isomeric FAMEs (e.g. oleic acid methyl ester and linoleic acid methyl ester isomers) and the ability to use VUV data analysis software for deconvolution of co-eluting signals. As a universal detector, VUV also provides high specificity, sensitivity, and a fast data acquisition rate, making it a powerful tool for fatty acid screening when combined with gas chromatography. The fatty acid profile of several food oil samples (olive, canola, vegetable, corn, sunflower and peanut oils) were analyzed in this study to demonstrate applicability to real world samples.Copyright © 2015 Elsevier Ltd. All rights reserved.

Related Compounds

  • Dichloromethane
  • Methyl linoleate

Related Articles:

Urinary metabolic fingerprinting of mice with diet-induced metabolic derangements by parallel dual secondary column-dual detection two-dimensional comprehensive gas chromatography.

2014-09-26

[J. Chromatogr. A. 1361 , 265-76, (2014)]

Synergistic activity of tenofovir and nevirapine combinations released from polycaprolactone matrices for potential enhanced prevention of HIV infection through the vaginal route.

2014-10-01

[Eur. J. Pharm. Biopharm. 88(2) , 406-14, (2014)]

Aqueous-core PEG-coated PLA nanocapsules for an efficient entrapment of water soluble anticancer drugs and a smart therapeutic response.

2015-01-01

[Eur. J. Pharm. Biopharm. 89 , 30-9, (2015)]

Studying the chemistry of cationized triacylglycerols using electrospray ionization mass spectrometry and density functional theory computations.

2014-08-01

[J. Am. Soc. Mass Spectrom. 25(8) , 1421-40, (2014)]

Rapid detection of sugar alcohol precursors and corresponding nitrate ester explosives using direct analysis in real time mass spectrometry.

2015-04-21

[Analyst 140(8) , 2785-96, (2015)]

More Articles...