Results 61 to 70 of about 25,870 (262)

Preliminary Qualitative Analysis of Plant Samples by High-performance Thin-layer Chromatography for the Presence of Steroid Sapogenins of Some Representatives of the Dioscoreacae, Fabaceae, Ranunculaceae, Melanthiaceae, Scrophulariaceae

open access: yesРазработка и регистрация лекарственных средств
Introduction. Results of original research carried out by means of high performance thin layer chromatography (HPTLC) of various plant samples (air-dry raw material) of Dioscoreaceae, Ranunculaceae, Fabaceae, Melanthiaceae, Scrophulariaceae families are ...
A. E. Sukhanov   +3 more
doaj   +1 more source

EVALUATION OF RE-USED HPTLC PLATE FOR QUALITATIVE AND QUANTITATIVE ANALYSIS

open access: yesIndonesian Journal of Chemistry, 2010
The eficiency chromatography of HPTLC plate is better than conventional TLC plate but it more expensive. Due to the higher price of HPTLC plate compare to conventional TLC plate, the application of ";re-used"; HPTLC plate has been tested.
Lestyo Wulandari
doaj   +1 more source

HPTLC assay of nicotine and cotinine in biological samples [PDF]

open access: yes, 2018
This study presents the development of a simple high-performance thin layer chromatography (HPTLC) method for the determination of nicotine and its metabolite cotinine in human plasma and urine.
Baconi, Daniela Luiza   +6 more
core   +1 more source

In situ and in vitro comparative study on the bioproductivity of Arnicae folium et caulis from the northern area of the Romanian eastern carpathians [PDF]

open access: yes, 2014
Arnica montana L. is an important plant bioresource, being traditionally used as medicinal plant, for which the scientific and economic interest remains at a high level.
Dănilă, Doina   +3 more
core   +2 more sources

Phytochemical Analysis of Veratrum Alkaloids in Medicinal Veratrum Globules Using High‐Performance Liquid Chromatography Coupled With Tandem Mass Spectrometry

open access: yesBiomedical Chromatography, Volume 40, Issue 3, March 2026.
ABSTRACT Veratrum L. species have been used in traditional medicine for centuries due to their bioactive properties, yet they also contain toxic steroid alkaloids that pose potential health risks when present in herbal preparations. Reliable analytical approaches are therefore essential to ensure product safety, protect consumer health and assess ...
Julia Siegle, Jörg Pietsch
wiley   +1 more source

Natural Deep Eutectic Solvent Extraction of Flavonoids of Scutellaria baicalensis as a Replacement for Conventional Organic Solvents

open access: yesMolecules, 2020
Natural deep eutectic solvents (NADES) are a type of ionic liquid (IL) or deep eutectic solvent (DES), the ingredients of which are exclusively natural products (non-toxic and environmentally friendly).
Wim Wouter Oomen   +5 more
doaj   +1 more source

Biochemical characterization of the initial steps of the Kennedy pathway in Trypanosoma brucei:the ethanolamine and choline kinases [PDF]

open access: yes, 2008
Note related output below contains correction of this paper.Ethanolamine and choline are major components of the trypanosome membrane phospholipids, in the form of GPEtn (glycero-phosphoethanolamine) and GPCho (glycerophosphocholine).
Ayoama   +28 more
core   +8 more sources

Uncovering the Key Factors Influencing Phytochemical and Phytopharmacological Properties During Medicinal Plant Processing

open access: yeseFood, Volume 7, Issue 1, February 2026.
From farm to pharma, this review details the engineering of quality in medicinal plants through a science‐driven approach: it first elucidates how genetic and environmental factors inscribe the plant's phytochemical and phytopharmacological profile before harvest, and then dissects the postharvest techniques and technologies—chemical and thermal pre ...
Elyas Aryakia
wiley   +1 more source

QbD-guided HPTLC method development and validation for quantitative estimation of anticancer drugs

open access: yesJournal of Applied Pharmaceutical Research
Background: Olaparib, Abiraterone acetate, and Pazopanib are critical anticancer agents used in the treatment of breast/ovarian, prostate, and renal cancers, respectively.
Bhavik Jani, Hitesh Vekariya
doaj   +1 more source

Development and Validation of a Stability-Indicating Greener HPTLC Method for the Estimation of Flufenamic Acid

open access: yesSeparations, 2023
The literature on ecofriendly/greener high-performance thin-layer chromatographic (HPTLC) methods for quantifying flufenamic acid (FFA) is scant.
Prawez Alam   +7 more
doaj   +1 more source

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