Results 21 to 30 of about 54,757 (260)

Analysis of imidazoles and triazoles in biological samples after MicroExtraction by packed sorbent [PDF]

open access: yes, 2017
This paper reports the MEPS-HPLC-DAD method for the simultaneous determination of 12 azole drugs (bifonazole, butoconazole, clotrimazole, econazole, itraconazole, ketoconazole, miconazole, posaconazole, ravuconazole, terconazole, tioconazole and ...
Bellagamba, Giuseppe   +9 more
core   +3 more sources

Analysis and quantification of flavonoidic compounds from Portuguese olive (Olea europeae L.) leaf cultivars [PDF]

open access: yes, 2005
Twenty three samples of 18 Portuguese olive leaf cultivars were analysed by a reversed-phase HPLC/DAD procedure and eight flavonoidic compounds were identified and quantified (luteolin 7,40-O-diglucoside, luteolin 7-O-glucoside, rutin, apigenin 7-O ...
Andrade, Paula B.   +7 more
core   +1 more source

Comparative Metabolite Profiling of Wild and Cultivated Justicia procumbens L. Based on 1H-NMR Spectroscopy and HPLC-DAD Analysis

open access: yesPlants, 2020
Justicia procumbens L. is known across Korea, India, China, and Taiwan as a remedy against fever, cough, sore throat, and cirrhosis of ascites. J. procumbens provides the raw material for a candidate anti-asthma drug (DW2008S) currently completing phase ...
Hyunyong Lee   +9 more
doaj   +1 more source

Determination of Ethylene Thiourea in Urine by HPLC-DAD [PDF]

open access: yesJournal of Analytical Toxicology, 2005
Ethylene thiourea (ETU) is a metabolite of ethylenebisdithiocarbamates (EBDCs); it is the best indicator of exposure to these fungicides. Therefore, high-performance liquid chromatography with photodiode-array detection (HPLC-DAD) was optimized and validated for the determination of ETU in human urines.
Souleiman, El Balkhi   +2 more
openaire   +2 more sources

Simultaneous quantifications of four purine derivatives biomarkers in cow milk by SPE HPLC-DAD

open access: yesCzech Journal of Food Sciences, 2021
In this study, simultaneous quantification of allantoin, uric acid, xanthine, and hypoxanthine in cow milk by solid phase extraction (SPE) and high performance liquid chromatography-diode array detection (HPLC-DAD) method was perform.
Mihaela Vlassa   +2 more
doaj   +1 more source

Analysis of food supplement with unusual raspberry ketone content [PDF]

open access: yes, 2016
In recent years food supplement market increased constantly, including slimming products and against obesity. The case of rasberry ketone (RK) is here reported.
Foddai, S.   +6 more
core   +1 more source

Tronchuda cabbage (Brassica oleracea L. var. costata DC) seeds: phytochemical characterization and antioxidant potential [PDF]

open access: yes, 2007
Tronchuda cabbage (Brassica oleracea L. var. costata DC) seeds were studied for their chemical composition and antioxidant capacity. Thirteen phenolic compounds were characterized and quantified by reversed-phase HPLC-DAD-MS/MS-ESI and HPLC-DAD ...
Andrade, Paula B.   +5 more
core   +1 more source

Analysis of benzo[c] phenanthridine alkaloids in Eschscholtzia californica cell culture using HPLC-DAD and HPLC-ESI-MS/MS [PDF]

open access: yes, 2014
Effective HPLC-DAD and HPLC-ESI-MS/MS methods have been developed for the analysis of eight benzo[c] phenanthridine alkaloids (sanguinarine, chelirubine, macarpine, chelerythrine, dihydrosanguinarine, dihydrochelirubine, dihydromacarpine and ...
Hong Soon Rhee   +4 more
core   +1 more source

A Comparative Study on Analysis of Ginsenosides in American Ginseng Root Residue by HPLC-DAD-ESI-MS and UPLC-HRMS-MS/MS

open access: yesMolecules, 2022
Ginseng (Panax quinquefolius), a popular herbal and nutritional supplement consumed worldwide, has been demonstrated to possess vital biological activities, which can be attributed to the presence of ginsenosides. However, the presence of ginsenosides in
Bo-Yang Hsu   +3 more
doaj   +1 more source

Induction of phenolic compounds in Hypericum perforatum L. cells by colletotrichum gloeosporioides elicitation [PDF]

open access: yes, 2006
Changes in phenolic metabolism after elicitation with Colletotrichum gloeosporioides (CG) has been studied in Hypericum perforatum L. (HP) cell suspension cultures. Soluble phenolics were analysed by HPLC–DAD and HPLC–DAD–MS/MS. HP cultures elicited with
Conceição, Luís F. R.   +3 more
core   +1 more source

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