Akademiai Kiado Zrt.
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Comparative Evaluation of Antioxidant Activity Using 1,1-Diphenyl-2-Picrylhydrazyl and 2,2′-Azino-bis(3-Ethylbenzothiazoline-6-Sulphonic Acid) Methods
Akademiai Kiado Zrt. - Tập 29 - Trang 306-309 - 2016
Ultraviolet—visible (UV—vis) spectrometry, electron paramagnetic resonance spectroscopy, high-performance liquid chromatography, and thin-layer chromatography were used for the evaluation of the antioxidant activity of natural samples. All the methods used free radicals to determine antioxidant capacity and standard antioxidant compounds, usually Trolox or vitamin C, to express the results. In thi......
The absence of β-carotene and the presence of biliverdin in the medicinal leechHirudo medicinalisas determined by TLC
Akademiai Kiado Zrt. - - 2005
Stability-Indicating HPTLC Method for Simultaneous Estimation of Amlodipine Besylate, Hydrochlorothiazide and Olmesartan Medoxomil in Combined Tablet Dosage Forms
Akademiai Kiado Zrt. - Tập 25 - Trang 475-480 - 2012
Densitometric thin-layer chromatography of protease inhibitors in pharmaceutical preparations
Akademiai Kiado Zrt. - Tập 25 Số 4 - Trang 374-379 - 2012
Stimulation quantification of four natural lipase inhibitors from Alismatis Rhizoma by high-performance thin-layer chromatography method
Akademiai Kiado Zrt. - Tập 35 - Trang 3-12 - 2022
The lipase inhibitory activities of four main components from the rhizomes of Alisma orientale (Sam.) Juz. were evaluated by an in situ high-performance thin-layer chromatography (HPTLC)‒bioautographic assay taking orlistat as control standard. The order of relative activity was alisol B 23-acetate > alisol B > alisol A > alisol C 23-acetate. With that, an accurate, efficient and sustainable HPTLC......
A Validated Stability-Indicating High-Performance Thin-Layer Chromatographic Method for the Analysis of Methotrexate in Bulk Drug and Marketed Injection
Akademiai Kiado Zrt. - Tập 30 Số 1 - Trang 75-79 - 2017
Thin-Layer Chromatographic Analysis of Carotenoids in Plant and Animal Samples
Akademiai Kiado Zrt. - Tập 23 - Trang 94-103 - 2010
Carotenoids are among the most widespread and important pigments in living organisms. They are found in common foods and vegetables. The characteristic pattern of alternating single and double bonds in the polyene backbone enables them to absorb excess energy from other molecules. The nature of the specific end groups on carotenoids may effect their polarity, thus solubility ranges from acetone to......
Comparison between thin-layer chromatography and overpressured layer chromatography fingerprints of commercial essential oils and accelerated solvent extraction plant extracts
Akademiai Kiado Zrt. - Tập 34 - Trang 113-120 - 2021
Developing fit-to-purpose analytical screening methods for plant marker constituents by simple and affordable techniques represents a constant and important request from the current transformation chain of plant products. In this work, methods developed on classical thin-layer chromatography (TLC) and overpressured layer chromatography (OPLC) have been applied on some of the most valuable commerci......
Determination of Polyamines in Beers by HPTLC with Fluorescence Detection
Akademiai Kiado Zrt. - Tập 14 - Trang 4-7 - 2001
A high-performance thin-layer chromatographic (HPTLC) method has been developed for determination of polyamines in beers. Beer samples, previously degassed, were derivatized with dansyl chloride and the dansyl derivatives were separated by HPTLC with silica gel as stationary phase and chloroform-triethylamine, 2 + 1 (v/v), containing 5% (m/v) polyoxyethylene-10-lauryl ether, as mobile phase. Quant......
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