Results 11 to 20 of about 9,222 (182)
GC-MS, GC-O and OAV analyses of key aroma compounds in Jiaozi Steamed Bread
Grain & Oil Science and Technology, 2020 Jiaozi Steamed Bread (JSB) has a unique aroma as a traditional staple food in China. The volatile compounds in JSB were extracted by simultaneous distillation and extraction (SDE) and headspace solid-phase microextraction (HS-SPME).
Yuanhui Wang +8 more
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Volatile compounds of Algerian extra-virgin olive oils: Effects of cultivar and ripening stage
International Journal of Food Properties, 2018 The distinctive extra-virgin olive oil aroma consists of a complex mixture of volatile compounds. We comparatively studied the volatiles of eight autochthonous monovarietal extra-virgin olive oils from the north-east part of Algeria via headspace solid ...
Maya Cherfaoui +3 more
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Improved analysis of propylene oxide, propylene chlorohydrin and propylene bromohydrin
Julius-Kühn-Archiv, 2018 The benefits and deficiencies of several methods of analysis for PPO and PXH, including the aqueous extraction used in ASTA method 23.1 and the MTBE extraction method previously reported by the authors, will be discussed.
Hall, Wiley A. +2 more
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Determination of Lidocaine in Hair of Drug Fatalities by Headspace Solid-Phase Microextraction [PDF]
Journal of Analytical Toxicology, 2000 The local anesthetic lidocaine was determined in hair by hydrolysis of the samples with 4% NaOH in the presence of excessive Na2SO4 and subsequent headspace solid-phase microextraction with a 65-microm Carbowax/divinylbenzene fiber, and gas chromatography-mass spectrometry measurement with etidocaine as the internal standard.
F, Sporkert, F, Pragst
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The Scientific World Journal, 2014 Volatile components in cape gooseberry fruit at ripe stage were collected using headspace-solid phase microextraction, and analyzed by gas chromatography-mass spectrometry.
Murat Yilmaztekin
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Czech Journal of Food Sciences, 2014 Headspace solid phase microextraction and purge and trap analysis were used for the determination of volatiles in beer. These methods were compared with the analysis of unconcentrated gas phase and liquid extraction. Solid phase microextraction proved to
Jana KLEINOVÁ, Bořivoj KLEJDUS
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Journal of Chromatography Open, 2023 Aroma profiles of blueberries contain a heterogeneous mixture of volatile organic compounds (VOCs), and headspace sampling is the most efficient approach to VOC extraction from berries.
Ryan P. Dias +5 more
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Examination of Intermolecular Forces Influencing Headspace Analysis of Biological Samples
MetabolitesHeadspace analysis is an effective method for assessing the concentrations of volatile and semi-volatile metabolites in biological samples. In particular, solid-phase microextraction (SPME) is an efficient tool for headspace analyses. Metabolites present
Young Eun Lee, Bruce A. Kimball
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Solventless Microextration Techniques for Pharmaceutical Analysis: The Greener Solution
Frontiers in Chemistry, 2022 Extensive efforts have been made in the last decades to simplify the holistic sample preparation process. The idea of maximizing the extraction efficiency along with the reduction of extraction time, minimization/elimination of hazardous solvents, and ...
Heba M. Mohamed
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Application of Thin-Film Microextraction to Analyze Volatile Metabolites in A549 Cancer Cells
Metabolites, 2021 Volatile organic compounds (VOCs) have been proposed in the last two decades as biomarkers for disease detection and therapeutic monitoring. Model in vitro experiments with established cell lines are fundamental to clarify whether given VOCs originate ...
Wojciech Filipiak +4 more
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