Results 21 to 30 of about 153,197 (305)

Recent developments in the rapid analysis of plants and tracking their bioactive constituents [PDF]

open access: yes, 2009
Natural products chemistry has witnessed many new developments in the last 5 years like extractions with subcritical water and ionic liquids, LC/HRMS and LC/SPE/cryo-NMR, UHPLC, TLC/MS, MS-based preparative HPLC, comprehensive chromatography (GC × GC, LC
Beek, T.A., van   +7 more
core   +2 more sources

DEVELOPMENT OF METHODS FOR DETERMINATION OF SPECIFIC IMPURITIES IN THE GLUTATIONION RESTORED SUBSTANCE

open access: yesФармация и фармакология (Пятигорск), 2019
Glutathione (γ-L-glutamyl-L-cysteinylglycine) is the most important low molecular weight intracellular thiol tripeptide consisting of three amino acids – glycine, cysteine and glutamic acid.
K. A. Alexeeva   +3 more
doaj   +1 more source

Phytochemical analysis of Panax species: a review

open access: yesJournal of Ginseng Research, 2021
Panax species have gained numerous attentions because of their various biological effects on cardiovascular, kidney, reproductive diseases known for a long time.
Yuangui Yang   +5 more
doaj   +1 more source

Analysis of macrolide antibiotics [PDF]

open access: yes, 1998
The following macrolide antibiotics have been covered in this review: erythromycin and its related substances, azithromycin, clarithromycin, dirithromycin, roxithromycin, flurithromycin, josamycin, rokitamycin, kitasamycin, mycinamycin, mirosamycin ...
Kanfer, I   +2 more
core   +3 more sources

Quantification of punicalagin in pomegranate peels from high-performance thin-layer chromatography

open access: yesBiomedical and Biotechnology Research Journal, 2022
Background: Punicalagin is the main phenolic compound present in pomegranate (Punica granatum), it possesses various kinds of activities which is very essential as a dietary supplement, herbal supplements, or nutraceuticals are widely available in the ...
Pooja Gadkari, Sanjay J Daharwal
doaj   +1 more source

Phytochemical analysis of ethanolic extract of Dichrostachys Cinerea W and Arn leaves by a thin layer chromatography, high performance thin layer chromatography and column chromatography

open access: yesAncient Science of Life, 2013
Background: The leaves of Dichrostachys cinerea are used as laxative, diuretic, painkiller. It is also used in the treatment of gonorrhoea, boils, oedema, gout, veneral diseases and nasopharyngeal affections, etc.
M Vijayalakshmi   +3 more
doaj   +1 more source

Development of a High-Performance Liquid Chromatography Method to Determine the Fagopyrin Content of Tartary Buckwheat (Fagopyrum tartaricum Gaertn.) and Common Buckwheat (F. esculentum Moench)

open access: yesPlant Production Science, 2009
Buckwheat contains fagopyrin, which induces photosensitization in light-skinned livestock when exposed to sunlight. Here, we developed a high-performance liquid chromatography (HPLC) method to measure the fagopyrin content of buckwheat.
Kentaro Eguchi   +2 more
doaj   +1 more source

Development and validation of high-performance liquid chromatography and high-performance thin-layer chromatography methods for the quantification of khellin in Ammi visnaga seed

open access: yesJournal of Pharmacy and Bioallied Sciences, 2015
Objective: The present study was used to design simple, accurate and sensitive reversed phase-high-performance liquid chromatography RP-HPLC and high-performance thin-layer chromatography (HPTLC) methods for the development of quantification of khellin ...
Abid Kamal   +4 more
doaj   +1 more source

Dual function additives: A small molecule crosslinker for enhanced efficiency and stability in organic solar cells [PDF]

open access: yes, 2015
A bis‐azide‐based small molecule cross­linker is synthesized and evaluated as both a stabilizing and efficiency‐boosting additive in bulk heterojunction organic photovoltaic cells.
Ashraf, RS   +8 more
core   +2 more sources

Isolation of oleanolic acid from Clematis armandii for differentiation it from adulterants by HPTLC/HPLC

open access: yesHeliyon, 2023
Clematis armandii has been used in many Chinese traditional patent medicines all over the world as a form of Caulis Clematidis Armandii. However, it has often been adulterated by Aristolochia manshuriensis, and Iodes vitiginea. A.
Hien Ha Minh   +2 more
doaj   +1 more source

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