Italian and Spanish commercial tomato sauces for pasta dressing: study of sensory and head-space profiles by Flash Profiling and solid-phase microextraction-gas chomatography-mass spectrometry

2017 ◽  
Vol 97 (10) ◽  
pp. 3261-3267 ◽  
Author(s):  
Alessandra Bendini ◽  
Anna Vallverdú-Queralt ◽  
Enrico Valli ◽  
Rosa Palagano ◽  
Rosa Maria Lamuela-Raventos ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Head Space ◽  
Flash Profiling

scholarly journals Analysis of the chemical profile of cerrado pear fixed compounds by mass spectrometry with paper spray and volatile ionization by SPME-HS CG-MS

2020 ◽  
Vol 9 (9) ◽  
pp. e949998219
Author(s):  
Ana Paula Xavier Mariano ◽  
Ana Luiza Coeli Cruz Ramos ◽  
Rodinei Augusti ◽  
Raquel Linhares Bello Araújo ◽  
Júlio Onésio Ferreira Melo
Keyword(s):  
Mass Spectrometry ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Chemical Constituents ◽  
Ambient Ionization ◽  
Chemical Profile ◽  
Paper Spray ◽  
Head Space ◽  
Positive Mode ◽  
Fruit Mass

Eugenia klotzschiana Berg is a native fruit of the cerrado, belonging to the Myrtaceae family, known as the cerrado pear and very little explored. The present study's objective was to obtain the profile of the fixed and volatile chemical constituents of the fruit. Mass spectrometry with ambient ionization paper spray (PS-MS) was used in positive and negative mode for fixed compounds. For volatiles, solid-phase microextraction by head space and gas chromatography was employed. The PS-MS identified 31 compounds, 21 in the negative and 10 in the positive mode, including fatty acids, flavonoids, phenolic acids, tannins and sugars. The solid-phase microextraction method was used in head space mode, using the polydimethylsiloxane-divinylbenzene fiber to extract volatile organic compounds (VOCs). The volatiles detected totaled 11 substances, belonging to the class of monoterpenes, sesquiterpenes, and esters. PS-MS was capable and efficient in determining the fixed compounds present in the cerrado pear pulp, providing the chemical profile of the fruit, which contains essential compounds with potential antioxidant bioactivity. The volatile profile was obtained with success, indicating menthol, fruity and vanilla notes in the pulp of the cerrado pear.

scholarly journals Quantification of selected volatile organic compounds in human urine by gas chromatography selective reagent ionization time of flight mass spectrometry (GC-SRI-TOF-MS) coupled with head-space solid-phase microextraction (HS-SPME)

The Analyst ◽  
2016 ◽  
Vol 141 (15) ◽  
pp. 4796-4803 ◽  
Author(s):  
Paweł Mochalski ◽  
Karl Unterkofler
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Human Urine ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Time Of Flight ◽  
Ionization Time ◽  
Flight Mass Spectrometry ◽  
Head Space ◽  
Selective Reagent

Selective reagent ionization time of flight mass spectrometry with NO+as the reagent ion in conjunction with gas chromatography and head-space solid-phase microextraction was used to determine 16 volatiles in human urine.

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