Results 1 to 10 of about 2,208 (118)

Pharmaceutical Residual Solvent Analysis: A Comparison of GC-FID and SIFT-MS Performance

open access: yesAppliedChem, 2023
Residual solvents in pharmaceutical excipients, active pharmaceutical ingredients (APIs), and finished products are usually analyzed using gas chromatography (GC)-based techniques according to a pharmacopeial monograph, such as the United States ...
Mark J. Perkins   +3 more
doaj   +1 more source

Antibacterial Activity of Thymus vulgaris L. Essential Oil Vapours and Their GC/MS Analysis Using Solid-Phase Microextraction and Syringe Headspace Sampling Techniques

open access: yesMolecules, 2021
While the inhalation of Thymus vulgaris L. essential oil (EO) is commonly approved for the treatment of mild respiratory infections, there is still a lack of data regarding the antimicrobial activity and chemical composition of its vapours.
Julien Antih   +3 more
doaj   +1 more source

Exploratory Study Using Urinary Volatile Organic Compounds for the Detection of Hepatocellular Carcinoma

open access: yesMolecules, 2021
Hepatocellular carcinoma (HCC) biomarkers are lacking in clinical practice. We therefore explored the pattern and composition of urinary volatile organic compounds (VOCs) in HCC patients.
Ayman S. Bannaga   +4 more
doaj   +1 more source

Headspace Volatile Organic Compound Profiling of Pleural Mesothelioma and Lung Cancer Cell Lines as Translational Bridge for Breath Research

open access: yesFrontiers in Oncology, 2022
IntroductionMalignant pleural mesothelioma (MPM) is a lethal cancer for which early-stage diagnosis remains a major challenge. Volatile organic compounds (VOCs) in breath proved to be potential biomarkers for MPM diagnosis, but translational studies are ...
Eline Janssens   +18 more
doaj   +1 more source

A Comparison of Collection Methods for Microbial Volatiles

open access: yesFrontiers in Sustainable Food Systems, 2020
Recently, there has been an increase in the number of reports that highlight the role of microbes and their volatile metabolites in interactions with plants and insects, including interactions which may benefit agricultural production.
Caitlin C. Rering   +4 more
doaj   +1 more source

β-caryophyllene as an attractant for the cacao mirid bug, Helopeltis bakeri Poppius (Hemiptera: Miridae), and chemodiversity of its host plant volatiles

open access: yesFrontiers in Agronomy, 2023
The cacao mirid bug, Helopeltis bakeri, is a major insect pest of cacao in the Philippines. It feeds on pods causing puncture wounds that become necrotic lesions and may lead eventually to pod abortion.
Mary Angelique A. Tavera   +9 more
doaj   +1 more source

Cyanogenesis in Macadamia and Direct Analysis of Hydrogen Cyanide in Macadamia Flowers, Leaves, Husks, and Nuts Using Selected Ion Flow Tube–Mass Spectrometry

open access: yesFoods, 2020
Macadamia has increasing commercial importance in the food, cosmetics, and pharmaceutical industries. However, the toxic compound hydrogen cyanide (HCN) released from the hydrolysis of cyanogenic compounds in Macadamia causes a safety risk. In this study,
Hardy Z. Castada   +3 more
doaj   +1 more source

Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant

open access: yesSeparations, 2022
In this study, a novel approach in headspace gas chromatographic analysis using the selective absorption of the gas extractant during concentration of the analytes was developed.
Oleg V. Rodinkov   +4 more
doaj   +1 more source

Characterization of Polyphenols and Volatile Compounds from Understudied Algerian Pallenis spinosa by HS-SPME-GC-MS, NMR and HPLC-MSn Approaches

open access: yesApplied Sciences, 2023
Pallenis spinosa (L.) Cass. is a widespread plant in the Mediterranean region. Traditionally, it is used as a medicinal species to treat several ailments, from inflammation to skin injuries.
Nabila Adoui   +7 more
doaj   +1 more source

Recent trends in the chromatographic analysis of volatile flavor and fragrance compounds: Annual review 2020

open access: yesAnalytical Science Advances, 2021
The chromatographic analysis of volatile flavor and fragrance compounds is performed routinely in several industries and in many fields of scientific research.
Stefan Louw
doaj   +1 more source

Home - About - Disclaimer - Privacy