Results 61 to 70 of about 56,272 (220)

Applications of Microextraction Technology for the Analysis of Alcoholic Beverages Quality: Current Perspectives and Future Directions

open access: yesFoods
Alcoholic beverages are loved by the majority of consumers because of their diverse characteristics and rich nutritional value; thus, ensuring their quality is necessary for maintaining the rapid development of the alcoholic beverage industry.
Yue Qiu   +6 more
doaj   +1 more source

Recent Advances in Applications of Ionic Liquids in Miniaturized Microextraction Techniques

open access: yesMolecules, 2018
Green sample preparation is one of the most challenging aspects in green analytical chemistry. In this framework, miniaturized microextraction techniques have been developed and are widely performed due to their numerous positive features such as ...
Maria Kissoudi, Victoria Samanidou
doaj   +1 more source

2-pentanone production from hexanoic acid by Penicillium roqueforti from blue cheese:is this the pathway used in humans? [PDF]

open access: yes, 2014
Production of 2-pentanone, a methylketone, is increased in fasting ketotic humans. Its origin is unknown. We hypothesised that it is formed via β-oxidation of hexanoic acid by the peroxisomal pathway proposed for methylketone-producing fungi and yeasts ...
Mills, Graham A., Walker, Valerie
core   +2 more sources

Dereplicative Combination of HPLC/DAD/MS and 2D NMR to Identify Lichexanthone Isomers in Lichen Extracts

open access: yesPhytochemical Analysis, EarlyView.
ABSTRACT Introduction Lichexanthones are the major xanthones found in lichens. They present a high degree of isomerism, which makes their identification tedious. Xanthones are known to occur in lichens according to chemosyndromes, and these compounds act as chemotaxonomic markers.
Solenn Ferron   +5 more
wiley   +1 more source

Characterization of craft beer through flavour component analysis by GC-MS and multivariate statistical tools [PDF]

open access: yes, 2018
Beer is a rather popular drink and represents the most widely consumed alcoholic beverage in the world.The present research aims at characterizing the flavour profile of lager pilsner, the category of low fermentation beers most common in Europe.
Boccacci Mariani Maurizio   +2 more
core  

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

open access: yesRare Metals, EarlyView.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang   +11 more
wiley   +1 more source

Analysis of Volatile Components of Nine Punica grcanatum L. Cultivars Grown in Xinjiang Based on Electronic Nose and HS-SPME-GC-MS

open access: yesShipin gongye ke-ji, 2023
In this study, headspace solid-phase microextraction combined with gas chromatography-mass spectrometry (HS-SPME-GC-MS) and electronic nose technology were used to analyze the volatile components of the fruit from nine pomegranate (Punica granatum ...
Xiuli SHENG   +5 more
doaj   +1 more source

Illicit Drug‐Derived Volatile Organic Compounds as Markers for Application in Noncontact Detection Technology

open access: yesThe Chemical Record, EarlyView.
This review highlights the characteristic odor markers of illicit drugs, emphasizing volatile markers from both natural and synthetic sources, and explores the shift from canine‐based detection to emerging noncontact sensing technologies. Illicit drug use remains a global concern, requiring effective detection methods to counter evolving concealment ...
Minwoo Kim   +4 more
wiley   +1 more source

Principais técnicas de preparo de amostra para a determinação de resíduos de agrotóxicos em água por cromatografia líquida com detecção por arranjo de diodos e por espectrometria de massas

open access: yesQuímica Nova, 2011
The determination of pesticide residues in water samples by Liquid Chromatography require sample preparation for extraction and enrichment of the analytes with the minimization of interferences to achieve adequate detection limits.
Sergiane Souza Caldas   +5 more
doaj   +1 more source

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