Results 121 to 130 of about 157,527 (353)

The Effect of Pressure and Solvent on the Supercritical Fluid Chromatography Separation of Tocol Analogs in Palm Oil

open access: yesMolecules, 2017
There are six tocol analogs present in palm oil, namely α-tocopherol (α-T), α-tocomonoenol (α-T1), α-tocotrienol (α-T3), γ-tocotrienol (γ-T3), β-tocotrioenol (β-T3) and δ-tocotrienol (δ-T3).
Mei Han Ng, Ahmad Kushairi
doaj   +1 more source

Seasonal and site-specific variation in vapour and aerosol phase PAHs over Flanders (Belgium) and their relation with anthropogenic activities [PDF]

open access: yes, 2005
Peer ...
Bencs, L.   +8 more
core   +1 more source

Ion Source Complementarity for Characterization of Complex Organic Mixtures Using Fourier Transform Mass Spectrometry: A Review

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Complex organic mixtures are found in many areas of research, such as energy, environment, health, planetology, and cultural heritage, to name but a few. However, due to their complex chemical composition, which holds an extensive potential of information at the molecular level, their molecular characterization is challenging.
Charlotte Mase   +5 more
wiley   +1 more source

A Validated GC‐MS Method for Major Terpenes Quantification in Hydrodistilled Cannabis sativa Essential oil

open access: yesPhytochemical Analysis, EarlyView.
ABSTRACT Introduction Terpenes, which are found in high concentrations in the essential oil fraction of the Cannabis sativa flower, have demonstrated potential in many therapeutic and industrial applications. Objectives This work reports on a method developed for quantifying 18 terpenes in C. sativa essential oil obtained through hydrodistillation. The
Noelle Joy   +2 more
wiley   +1 more source

Supercritical fluid extraction of cannabinoids and their analysis by liquid chromatography and supercritical fluid chromatography: A short review

open access: yesJournal of CO2 Utilization
Extraction of cannabinoids from different parts of the plant matrix is often carried out by various traditional methods based on the use of organic solvents.
Matjaž Rantaša   +3 more
doaj  

Determination of Optical Purity of Lactic Acid-Based Chiral Liquid Crystals and Corresponding Building Blocks by Chiral High-Performance Liquid Chromatography and Supercritical Fluid Chromatography

open access: yesMolecules, 2019
Liquid crystals (LCs) are among the most prominent materials of the current information age, mainly due to their well-known application in liquid crystal displays (LCDs).
Anna Poryvai   +6 more
doaj   +1 more source

Low Tg PLA‐Based Copolymer Foams for Tissue Engineering Applications: Influence of Supercritical CO2 and N2 Mixtures on Open‐Cell Content, Morphology, and Storage Stability

open access: yesJournal of Polymer Science, EarlyView.
ABSTRACT Polylactid‐based (PLA) copolymer foams show a high potential for tissue engineering applications. However, tailored foam properties are required for these applications. As medical authorization is challenging for foams containing chemical modifiers or nucleating agents, tailored foam properties must be achieved by varying process parameters ...
Annalena Pongratz   +4 more
wiley   +1 more source

Qualitative and quantitative evaluation of glucosinolates in cruciferous plants during their life cycles [PDF]

open access: yes, 2004
Glucosinolates produced by Brassica species were investigated in relation to biofumigation, a term used to describe the effects some allelochemicals, including glucosinolate derived products, may have on soil-borne pathogens or other herbivores.
Bellostas, Natalia   +2 more
core  

Isolation of essential oil from different plants and herbs by supercritical fluid extraction [PDF]

open access: yes, 2012
This is the author’s version of a work that was accepted for publication in Journal of Chromatography A. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms
Fornari, Tiziana   +4 more
core   +2 more sources

Chemical constituents and nitric oxide inhibitory activity of supercritical carbon dioxide extracts from Mitragyna speciosa leaves

open access: yesArabian Journal of Chemistry, 2019
Mitragyna speciosa Korth., is a controversial plant that possesses various medicinal values and has been used from time immemorial in folk medicine. Recently, it has been widely abused as a narcotic source.
Norsita Tohar   +4 more
doaj  

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