Articles with "headspace" as a keyword



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A Study of Headspace Solid‐Phase Microextraction in the Analysis of 54 Hydrophobic Pollutants in Remote Alpine Lake Waters with an Emphasis on Analyte Recovery and Storage Time

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Published in 2023 at "Environmental Toxicology and Chemistry"

DOI: 10.1002/etc.5616

Abstract: Commercially available headspace solid‐phase microextraction (HS‐SPME) fibers have been used for years to extract pesticides and polychlorinated biphenyls from aqueous samples at the expected ultratrace levels (picograms per liter or parts per quadrillion) in alpine… read more here.

Keywords: storage time; headspace; analyte recovery; recovery ... See more keywords
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Enhancing the Sensitivity of Full Evaporation Technique Using Multiple Headspace Extraction Analysis

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Published in 2017 at "Chromatographia"

DOI: 10.1007/s10337-017-3343-x

Abstract: This article reports on the development of a new full evaporation (FE) headspace technique based on multiple headspace extraction (MHE). Using multiple headspace extraction procedures, the sample volume used in the headspace can be dramatically… read more here.

Keywords: full evaporation; headspace extraction; multiple headspace; headspace ... See more keywords
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Characterization of Aromatic Volatile Compounds of Eight Wild Mushrooms by Headspace GC-MSD

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Published in 2017 at "Chemistry of Natural Compounds"

DOI: 10.1007/s10600-017-1999-y

Abstract: Mushrooms are consumed in many countries because of their taste and aroma. The aroma is the most important organoleptic property in the consumption of mushrooms [1]. As a result of various investigations in the literature,… read more here.

Keywords: headspace msd; headspace; compounds eight; volatile compounds ... See more keywords
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Contribution of headspace to the analysis of cyclodextrin inclusion complexes

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Published in 2018 at "Journal of Inclusion Phenomena and Macrocyclic Chemistry"

DOI: 10.1007/s10847-018-0818-9

Abstract: Headspace technology is a sampling method of a gas, which has been previously in contact with a liquid or a solid matrix from which volatiles were released into the gaseous phase. It is generally coupled… read more here.

Keywords: inclusion; headspace analysis; cyclodextrin inclusion; headspace ... See more keywords
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Determination of BTEX in urine samples using cooling/heating-assisted headspace solid-phase microextraction

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Published in 2017 at "Chemical Papers"

DOI: 10.1007/s11696-017-0176-x

Abstract: Excessive and uncontrolled exposures of the workers to benzene, toluene, ethylbenzene and xylene (BTEX) have currently raised great concerns among industrial hygienist all over the world. Therefore, the effective monitoring of such exposures is assumed… read more here.

Keywords: determination btex; phase microextraction; solid phase; headspace ... See more keywords
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Static Headspace Extraction with Compounds Trapping for the Analysis of Volatile Lipid Oxidation Products

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Published in 2017 at "Food Analytical Methods"

DOI: 10.1007/s12161-017-0838-x

Abstract: Static headspace is an easy to perform, convenient, and usually automated method for extraction of volatiles from various food matrices. Among other applications, it is used also for monitoring of volatile lipid oxidation products. However,… read more here.

Keywords: volatile lipid; headspace; lipid oxidation; oxidation products ... See more keywords
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Optimization of headspace solid phase micro-extraction of volatile compounds from papaya fruit assisted by GC–olfactometry

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Published in 2017 at "Journal of Food Science and Technology"

DOI: 10.1007/s13197-017-2871-6

Abstract: Abstract Optimization of the extraction conditions to investigate the volatile composition of papaya fruit involving headspace solid phase micro-extraction was carried out using multivariate strategies such as factorial design and response surface methodology. The performance… read more here.

Keywords: extraction; headspace solid; papaya fruit; phase micro ... See more keywords
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Odorants quantitation in high-quality cocoa by multiple headspace solid phase micro-extraction: Adoption of FID-predicted response factors to extend method capabilities and information potential.

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Published in 2019 at "Analytica chimica acta"

DOI: 10.1016/j.aca.2018.11.043

Abstract: This paper focuses on several methodological aspects in the quantitation of volatiles in solid samples by headspace solid phase micro-extraction (HS-SPME) combined with gas chromatography and parallel detection by flame ionization detector and mass spectrometry… read more here.

Keywords: extraction; information; fid; quantitation ... See more keywords

Factors controlling headspace pressure in a manual manometric BMP method can be used to produce a methane output comparable to AMPTS.

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Published in 2017 at "Bioresource technology"

DOI: 10.1016/j.biortech.2017.04.088

Abstract: The manual manometric biochemical methane potential (mBMP) test uses the increase in pressure to calculate the gas produced. This gas production may be affected by the headspace volume in the incubation bottle and by the… read more here.

Keywords: manual manometric; method; headspace; headspace pressure ... See more keywords

Three-ways changed in headspace air on anaerobic fermentation.

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Published in 2019 at "Bioresource technology"

DOI: 10.1016/j.biortech.2019.121684

Abstract: Different headspace condition has a great influence on fermentation process. In this study, whey protein was used as substrate, and the headspace air was changed in three different ways (H2 mixed N2, H2 mixed CO2,… read more here.

Keywords: headspace air; ways changed; fermentation; three ways ... See more keywords

Is clinician-supported use of a mindfulness smartphone app a feasible treatment for depression? A mixed-methods feasibility study

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Published in 2021 at "Internet Interventions"

DOI: 10.1016/j.invent.2021.100413

Abstract: Depression is the leading cause of disability globally and has serious consequences for the individual, their family and for society. Effective, accessible and affordable treatments are urgently needed. In-person group-based mindfulness-based interventions are an effective… read more here.

Keywords: intervention; mindfulness; depression; treatment ... See more keywords