Results 61 to 70 of about 48,147 (228)
Recent Advances in Applications of Ionic Liquids in Miniaturized Microextraction Techniques
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
Characterization of craft beer through flavour component analysis by GC-MS and multivariate statistical tools [PDF]
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
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt +4 more
wiley +1 more source
Ips typographus showed lower reproductive output in an occasional host (Pinus sylvestris) under laboratory conditions, and did not prefer its main host (Picea abies) over P. sylvestris in two‐choice bioassays. Abstract BACKGROUND The Eurasian spruce bark beetle, Ips typographus, is one of the most serious pests of Norway spruce (NS, Picea abies), with ...
Jana Gabriele Burchards +2 more
wiley +1 more source
Through the development of solid phase microextraction (SPME) technologies, thin film solid phase microextraction (TF-SPME) has been repeatedly validated as a novel sampling device well suited for various applications.
Ronald V. Emmons +2 more
doaj +1 more source
Determination of the chemical composition of tea by chromatographic methods: a review [PDF]
Despite the fact that mankind has been drinking tea for more than 5000 years, its chemical composition has been studied only in recent decades. These studies are primarily carried out using chromatographic methods.
Combet, Emilie +3 more
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The scent of death: A case study for volatile markers of decomposition on a concrete floor
Abstract Volatile organic compounds (VOCs) released during human decomposition are chemically diverse and can provide forensic evidence indicating the prior presence of a corpse. In July 2023, the Michigan City Police Department received a report from an individual claiming to have murdered his roommate and stored the body in a basement cellar for 57 ...
Alexis Hecker +2 more
wiley +1 more source
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
2-pentanone production from hexanoic acid by Penicillium roqueforti from blue cheese:is this the pathway used in humans? [PDF]
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
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Yeasts that specialize in flower nectar play an important role in pollination ecology. Metschnikowia reukaufii and Metschnikowia koreensis were the most prevalent nectar yeasts found in our field sites. Bee pollinators exhibited different behavioural responses to nectar yeasts in field experiments. Bees visited more flowers with M.
M. Elizabeth Moore +8 more
wiley +1 more source

