Results 21 to 30 of about 51,926 (282)

Application of chromatographic methods for quality control of cannabinoid impurities in products containing Cannabidiol [PDF]

open access: yesPharmacia
Strict quality control of impurities in legitimate cannabidiol products and in cannabis “novel foods” is necessary due to the increased health risks from side effects associated with these impurities.
Dobrina Tsvetkova   +2 more
doaj   +3 more sources

UHPLC–MS/MS based target profiling of stress-induced phytohormones

open access: yesPhytochemistry, 2014
Stress-induced changes in phytohormone metabolite profiles have rapid effects on plant metabolic activity and growth. The jasmonates (JAs) are a group of fatty acid-derived stress response regulators with roles in numerous developmental processes. To elucidate their dual regulatory effects, which overlap with those of other important defence-signalling
Kristýna Floková   +5 more
openaire   +3 more sources

Determination by UHPLC – UV – MS of polyphenol content of Amaranthus retroflexus

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2023
Having a very large area globally, the genus Amaranthus has been known since ancient times and used as a medicinal plant used in the treatment of various ailments.
Aida P. SĂRĂCIN   +6 more
doaj   +1 more source

UHPLC–MS/MS analysis of cocoa bean proteomes from four different genotypes [PDF]

open access: yesFood Chemistry, 2020
In this study the proteomic profiles of cocoa beans from four genotypes with different flavour profiles were analysed by bottom-up label-free UHPLC-MS/MS. From a total of 430 identified proteins, 61 proteins were found significantly differentially expressed among the four cocoa genotypes analysed with a fold change of ≥2.
Emanuele Scollo   +4 more
openaire   +2 more sources

UHPLC-ESI-MS/MS Quantitative Analyses of Multicomponent Hu Gan Tablets

open access: yesMolecules, 2019
Nowadays, the analysis of the multi-components in Chinese patent medicine prescriptions is being paid more attention. Therefore, in this study for the first time, a simple, rapid ultrahigh performance liquid chromatography−electrospray ionization ...
Jun Liang, Xin-Dong Guo, Fang Han
doaj   +1 more source

Determination of 27 Glucocorticoids in Urine by Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry Using UniSprayTM Source

open access: yesSeparations, 2023
Glucocorticoids (GCs) are a group of the most important and commonly used anti-inflammatory, antiallergenic, and immunosuppressive drugs. Like narcotics, they can be addictive if taken at increasing doses to achieve greater analgesic effects. The purpose
Mariola Wicka   +4 more
doaj   +1 more source

Aromatic Monomer Analysis by UHPLC-MS/MS v1

open access: yes, 2023
An analysis method was developed to allow for quantitation of aromatic compounds by ultra high pressure liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) detection. This was achieved by using reverse phase chromatography and multiple reaction monitoring (MRM) in negative ion mode using electrospray ionization (ESI).
openaire   +1 more source

Determination of aflatoxins M1, M2, B1, B2, G1 and G2 in peanut by modified QuEChERS method and ultra-high performance liquid chromatography-tandem mass spectrometry

open access: yesVigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia, 2015
A suitable method for routine analysis of aflatoxins M1, M2, B1, B2, G1, G2 in peanut by ultra-high performance liquid chromatography-tandem mass spectrometry was developed and validated.
André Victor Sartori   +5 more
doaj   +7 more sources

Simultaneous Analysis of Seven Neonicotinoids in Commercial Milk Samples Using an UHPLC-MS/MS Method

open access: yesApplied Sciences, 2020
A liquid–liquid extraction and ultra high-performance liquid chromatography tandem mass spectrometry (UHPLC–MS/MS) method was developed for simultaneous analysis of the residues of seven neonicotinoid insecticides (NEOs), namely acetamiprid, clothianidin,
Yu-Fang Huang   +2 more
doaj   +1 more source

Development of Meps-UHPLC–MS/MS Multistatin Methods for Clinical Analysis

open access: yesBioanalysis, 2016
Statins are the microsomal 3-hydroxy-3methylglutaryl-coenzyme A reductase inhibitors used for the treatment of hypercholesterolemia. Some recent studies revealed also the extra-lipid effects and anticancer activities. Due to the wide incidence of cancer diseases, the number of studies dealing with anticancer statin activities has grown in recent years.
Vlčková, H.   +4 more
openaire   +3 more sources

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