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Yearly trend of dicarboxylic acids in organic aerosols from south of Sweden and source attribution
Seven aliphatic dicarboxylic acids (C3-C9) along with phthalic acid, pinic acid and pinonic acid were determined in 35 aerosol (PM10) samples collected over the year at Vavihill sampling station inExpand
Biological valorization of low molecular weight lignin.
TLDR
A brief summary of sources of lignin, methods of depolymerization, biological pathways for conversion of the lign in monomers and the analytical tools necessary for characterizing and evaluating key lignIn attributes are given. Expand
Comparison of different extraction techniques for isolation of antioxidants from sweet grass (Hierochloe odorata)
Strong antioxidants, 5,8-dihydroxycoumarin and 5-hydroxy-8-O-beta-D-glucopyranosyl-benzopyranone were extracted from sweet grass (Hierochloe odorata L.) by using Soxhlet (SE), microwave-assistedExpand
A fast and sensitive method for the separation of carotenoids using ultra-high performance supercritical fluid chromatography-mass spectrometry
AbstractIn this study, a rapid and sensitive ultra-high performance supercritical fluid chromatography-mass spectrometry (UHPSFC-MS) method has been developed and partially validated for theExpand
Characterization of antioxidant polyphenols from Myrciaria jaboticaba peel and their effects on glucose metabolism and antioxidant status: A pilot clinical study.
TLDR
Brazilian berries, such as Myrciaria jaboticaba (jaboticaba), are good sources of polyphenols with a recognized function in oxidative stress attenuation proved in non-clinical studies and ellagitannins were the main contributors to the total antioxidant capacity. Expand
Determination of thiophanate-methyl and its metabolites at trace level in spiked natural water using the supported liquid membrane extraction and the microporous membrane liquid-liquid extraction
On-line supported liquid membrane (SLM) extraction and microporous membrane liquid-liquid extraction (MMLLE) techniques for sample preparation of natural water samples have been developed for theExpand
A rapid method for the separation of vitamin D and its metabolites by ultra-high performance supercritical fluid chromatography-mass spectrometry.
TLDR
A new supercritical fluid chromatography-mass spectrometry (SFC-MS) method has been developed for the separation of nine vitamin D metabolites within less than eight minutes, and its potential was applied to human plasma samples from healthy individuals. Expand
Impact of injection solvents on supercritical fluid chromatography.
TLDR
The findings of this work shows that interactions capable of masking accessible silanol groups on a C18 column are of importance in order to maximize the plate number, while solvents with dipolar and hydrogen bond interaction properties are associated negatively with chromatographic efficiency using polar columns. Expand
On-line automated sample preparation for liquid chromatography using parallel supported liquid membrane extraction and microporous membrane liquid-liquid extraction.
TLDR
An automated system was developed for analysis of non-polar and polar ionisable compounds at trace levels in natural water using the fungicide thiophanate methyl and its polar metabolites carbendazim and 2-aminobenzimidazole as model compounds. Expand
Determination of polycyclic aromatic hydrocarbons (PAHs) from organic aerosols using hollow fiber micro-porous membrane liquid-liquid extraction (HF-MMLLE) followed by gas chromatography-mass
TLDR
Almost all PAHs were found in most of the aerosol samples and limits of detection between 1.2 pg m (-3) and 180 pg m(-3) was obtained. Expand
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