Molecular Characterization of Phospholipids by High-Performance Liquid Chromatography Combined with an Evaporative Light Scattering Detector, High-Performance Liquid Chromatography Combined with Mass Spectrometry, and Gas Chromatography Combined with a Flame Ionization Detector in Different Oat Varieties

2012 ◽  
Vol 60 (44) ◽  
pp. 10963-10969 ◽  
Author(s):  
Cristina Montealegre ◽  
Vito Verardo ◽  
Ana Maria Gómez-Caravaca ◽  
Carmen García-Ruiz ◽  
María Luisa Marina ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Ionization Detector ◽  
Evaporative Light Scattering Detector ◽  
Flame Ionization ◽  
Evaporative Light Scattering

scholarly journals Determination of Polyvinyl Acetate in Chewing Gum Using High-Performance Liquid Chromatography–Evaporative Light Scattering Detector and Pyrolyzer–Gas Chromatography–Mass Spectrometry

Foods ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1473
Author(s):  
Sol Sim ◽  
Young-Min Kim ◽  
Yeong-Ju Park ◽  
Mohammed Xain Siddiqui ◽  
Yejin Gang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Polyvinyl Acetate ◽  
Gas Chromatography Mass Spectrometry ◽  
Chewing Gum ◽  
Evaporative Light Scattering Detector ◽  
Evaporative Light Scattering

Polyvinyl acetate (PVAc) is used in various adhesive, paint, and transparent tape applications. It is also used as a food additive in food manufacturing to make chewing gum and fruit and vegetable glazes; however, guidelines on the amount of food additives that is used have not yet been established. In this study, a method was developed for analysis of polyvinyl acetate (PVAc) using high-performance liquid chromatography with an evaporative light scattering detector (HPLC–ELSD) and pyrolyzer–gas chromatography–mass spectrometry (Py–GC–MS). The analytical methods were applied to commercially available chewing gum. In the HPLC–ELSD analysis, the linearity was acceptable (R2 > 0.999), and the limits of detection and quantification were 22.2 and 67.3 µg/mL, respectively. The accuracies of PVAc were 87–115% at spike levels of 200–1000 µg/mL for the intra- and inter-day tests. The contents of PVAc in the chewing gum samples were n.d. (not detected)—13.8 g/kg. The presence of PVAc in chewing gum was verified with Py–GC–MS analysis, finding the typical pyrolysates of PVAc, such as acetic acid, benzene, toluene, styrene, indane, naphthalene, and acenaphthene. The developed analytical methods can be applied for successful identification of PVAc in chewing gum.

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