Results 11 to 20 of about 34,285 (260)

High-Performance Thin-Layer Chromatography (HPTLC) Method for Identification of Meloxicam and Piroxicam

Processes, 2022
Background: High-performance thin-layer chromatography (HPTLC) is an advantageous, modern analytical technique based on the principles of thin-layer chromatography (TLC), which provides essential benefits, such as improved sample application, better and ...
Stanislava Ivanova, Velislava Todorova, Stanislav Dyankov, K. Ivanov   +3 more
semanticscholar   +1 more source

Microscopic characterization, TLC fingerprinting and determination of total phenol and flavonoid of different population of Camellia sinensis (L.) Kuntze (green tea) compared to a standard sample [PDF]

Trends in Pharmaceutical Sciences, 2019
With respect to the importance and high consumption of this drink, assessment of various brands and populations are needed to reach to high quality samples. Low-quality or fake samples may cause many unwanted effects.
Zahra Shahbazi, Mohammad M. Zarshenas, Mahmoudreza Moein, Sedigheh Khademian, Hamed Etemadfard   +4 more
doaj   +1 more source

Simultaneous Estimation of Cinnamaldehyde and Eugenol in Essential Oils and Traditional and Ultrasound-Assisted Extracts of Different Species of Cinnamon Using a Sustainable/Green HPTLC Technique

Molecules, 2021
A wide range of analytical techniques are reported for the determination of cinnamaldehyde (CCHO) and eugenol (EOH) in plant extracts and herbal formulations either alone or in combination.
A. Foudah, F. Shakeel, Mohammed H. Alqarni, S. Ross, M. Salkini, P. Alam   +5 more
semanticscholar   +1 more source

Thin-layer chromatography of DNS amino acids derivatives in systems with silica gel and silanized silica gel plates

Current Issues in Pharmacy and Medical Sciences, 2022
Investigations into separation selectivity of High-Performance Thin-layer chromatography (HPTLC) of dansyl (DNS) derivatives of amino acids in silica gel (Silica gel 60 F254s plates) and silanized silica gel (RP-18 W plates) systems are presented.
Chomicki Adam, Dzido Tadeusz H.
doaj   +1 more source

Identification and quantification of cannabinol as a biomarker for local hemp retting in an ancient sedimentary record by HPTLC-ESI-MS [PDF]

, 2020
Cannabis products have been used in various fields of everyday life for many centuries, and applications in folk medicine and textile production have been well-known for many centuries.
Csuk, René, Demske, Dieter, Kluge, Ralph, Kramell, Annemarie Elisabeth, Oehler, Florian, Schmidt, Theresa, Tarasov, Pavel E.   +6 more
core   +2 more sources

Hyphenated TLC as a Tool in the Effect-Directed Discovery of Bioactive Natural Products

Applied Sciences, 2020
Complex samples such as botanical extracts contain hundreds of compounds. Since we can only identify compounds that are stable, extractable, separable and detectable from complex botanical extracts, minimal sample treatment and different detection ...
Snezana Agatonovic-Kustrin, David W. Morton   +1 more
doaj   +1 more source

Quantification of biomarkers and evaluation of antioxidant, anti-inflammatory, and cytotoxicity properties of Dodonaea viscosa grown in Saudi Arabia using HPTLC technique

Open Chemistry, 2022
Dodonaea viscosa (Sapindaceae) was collected from Riyadh, Saudi Arabia. For the simultaneous measurement of quercetin and kaempferol, a validated high-performance thin-layer chromatography (HPTLC) approach was devised in D. viscosa leaf extract.
Almarfadi Omer M., Siddiqui Nasir A., Shahat Abdelaaty A., Alqahtani Ali S., Alam Perwez, Nasr Fahd A., Alshahrani Saad S., Noman Omar M.   +7 more
doaj   +1 more source

Combining Normal/Reversed-Phase HPTLC with Univariate Calibration for the Piperine Quantification with Traditional and Ultrasound-Assisted Extracts of Various Food Spices of Piper nigrum L. under Green Analytical Chemistry Viewpoint

Molecules, 2021
Due to unavailability of sustainable analytical techniques for the quantitation of piperine (PPN) in food and pharmaceutical samples, there was a need to develop a rapid and sensitive sustainable analytical technique for the quantitation of PPN ...
Mohammed H. Alqarni, P. Alam, A. Foudah, M. Muharram, F. Shakeel   +4 more
semanticscholar   +1 more source

Rapid, Sensitive, and Sustainable Reversed-Phase HPTLC Method in Comparison to the Normal-Phase HPTLC for the Determination of Pterostilbene in Capsule Dosage Form

Processes, 2021
The greenness evaluation of literature analytical methods for pterostilbene (PT) analysis was not performed. Accordingly, the rapid, sensitive, and green/sustainable reversed-phase high-performance thin-layer chromatography (RP-HPTLC) method was ...
P. Alam, F. Shakeel, Mohammed H. Alqarni, A. Foudah, Md. Faiyazuddin, S. Alshehri   +5 more
semanticscholar   +1 more source

HPTLC-DESI-HRMS-Based Profiling of Anthraquinones in Complex Mixtures—A Proof-of-Concept Study Using Crude Extracts of Chilean Mushrooms

Foods, 2020
High-performance thin-layer chromatography (HPTLC) coupled with negative ion desorption electrospray ionization high-resolution mass spectrometry (DESI-HRMS) was used for the analysis of anthraquinones in complex crude extracts of Chilean dermocyboid ...
Annegret Laub, Ann-Katrin Sendatzki, Götz Palfner, Ludger A. Wessjohann, Jürgen Schmidt, Norbert Arnold   +5 more
doaj   +1 more source