Identification of RP-HPLC peaks of bisphenol F and of bisphenol F diglycidyl ether and its hydrolysis products by thermospray mass spectrometry and gas chromatography/mass spectrometry

1992 ◽  
Vol 34 (1-2) ◽  
pp. 67-72 ◽  
Author(s):  
J. Simal Gándara ◽  
S. Paz Abuín ◽  
P. López Mahía ◽  
P. Paseiro Losada ◽  
J. Simal Lozano
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Diglycidyl Ether ◽  
Gas Chromatography Mass Spectrometry ◽  
Bisphenol F ◽  
Hydrolysis Products ◽  
Rp Hplc ◽  
Chromatography Mass Spectrometry ◽  
Thermospray Mass Spectrometry

scholarly journals Important Odorants of Four Brassicaceae Species, and Discrepancies between Glucosinolate Profiles and Observed Hydrolysis Products

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1055
Author(s):  
Luke Bell ◽  
Eva Kitsopanou ◽  
Omobolanle O. Oloyede ◽  
Stella Lignou
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Solid Phase ◽  
Gas Chromatography Mass Spectrometry ◽  
Glucosinolate Content ◽  
Active Components ◽  
Hydrolysis Products ◽  
Chromatography Mass Spectrometry ◽  
Brassicaceae Species ◽  
Aroma Generation

It is widely accepted that the distinctive aroma and flavour traits of Brassicaceae crops are produced by glucosinolate (GSL) hydrolysis products (GHPs) with other non-GSL derived compounds also reported to contribute significantly to their aromas. This study investigated the flavour profile and glucosinolate content of four Brassicaceae species (salad rocket, horseradish, wasabi, and watercress). Solid-phase microextraction followed by gas chromatography-mass spectrometry and gas chromatography-olfactometry were used to determine the volatile compounds and odorants present in the four species. Liquid chromatography-mass spectrometry was used to determine the glucosinolate composition, respectively. A total of 113 compounds and 107 odour-active components were identified in the headspace of the four species. Of the compounds identified, 19 are newly reported for ‘salad’ rocket, 26 for watercress, 30 for wasabi, and 38 for horseradish, marking a significant step forward in understanding and characterising aroma generation in these species. There were several non-glucosinolate derived compounds contributing to the ‘pungent’ aroma profile of the species, indicating that the glucosinolate-derived compounds are not the only source of these sensations in Brassicaceae species. Several discrepancies between observed glucosinolates and hydrolysis products were observed, and we discuss the implications of this for future studies.

scholarly journals Differentiation of bisphenol F diglycidyl ether isomers and their derivatives by HPLC-MS and GC-MS—comment on the published data

2021 ◽  
Author(s):  
Małgorzata Kasperkowiak ◽  
Monika Beszterda ◽  
Izabela Bańczyk ◽  
Rafał Frański
Keyword(s):  
Mass Spectrometry ◽  
Food Samples ◽  
Diglycidyl Ether ◽  
Gas Chromatography Mass Spectrometry ◽  
Published Data ◽  
Elution Order ◽  
Positional Isomers ◽  
Bisphenol F ◽  
Isomer Distribution ◽  
Chromatography Mass Spectrometry

AbstractPositional isomers of bisphenol F diglycidyl ether (BFDGE) have been analyzed by high-pressure liquid chromatography-mass spectrometry and by gas chromatography-mass spectrometry (HPLC-MS, GC-MS). Positional isomers of BFDGE derivatives (BFDGEx2H2O, BFDGExH2OxHCl) have been analyzed by HPLC-MS. On the basis of the obtained fragmentation patterns, the elution order of the isomers has been unequivocally determined, in standard solutions and in the sample of liquid obtained after rinsing an empty mackerel fish can with acetonitrile. Under HPLC condition, para,para isomers are eluted first, then ortho,para isomers’ elution follows, and ortho,ortho isomers are eluted last. Under GC condition, the reverse elution order has been obtained. For the first time, two ortho,para isomers of BFDGExH2OxHCl have been detected and their elution order has been determined. The obtained results are of key importance for determination of the isomer distribution of BFDGE and its derivatives in food samples.

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