Results 211 to 220 of about 34,285 (260)
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2010
From the beginning of the 1950s, paper chromatography was used to quantify samples. The paper was made transparent by liquids and transmitted light was measured according to the Lambert-Beer law. Silver-impregnated media were used as detectors, adapted from paper photography.
Bernd Spangenberg +2 more
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From the beginning of the 1950s, paper chromatography was used to quantify samples. The paper was made transparent by liquids and transmitted light was measured according to the Lambert-Beer law. Silver-impregnated media were used as detectors, adapted from paper photography.
Bernd Spangenberg +2 more
openaire +1 more source
Microchemical journal (Print), 2019
Although analytical HPLC-technique can be considered as a well-accepted versatile approach for the drugs' separation, quantification, as well as impurity profiling, its regular adoption shows increasing environmental concerns provoked by high energy ...
A. M. A. Al-Alamein +3 more
semanticscholar +1 more source
Although analytical HPLC-technique can be considered as a well-accepted versatile approach for the drugs' separation, quantification, as well as impurity profiling, its regular adoption shows increasing environmental concerns provoked by high energy ...
A. M. A. Al-Alamein +3 more
semanticscholar +1 more source
Industrial crops and products (Print), 2019
Stevioside is the major constituent of the Stevia Rebaudiana plant. The aim of this study is to appraise optimum procedure conditions for extraction of stevioside from Stevia Rebaudiana by Peleg’s mathematical methodology. Stevioside from dried leaves of
M. Rouhani
semanticscholar +1 more source
Stevioside is the major constituent of the Stevia Rebaudiana plant. The aim of this study is to appraise optimum procedure conditions for extraction of stevioside from Stevia Rebaudiana by Peleg’s mathematical methodology. Stevioside from dried leaves of
M. Rouhani
semanticscholar +1 more source
New HPTLC methods for analysis of major bioactive compounds in mate (Ilex paraguariensis) tea
, 2020New HPTLC (high-performance thin-layer chromatography) methods to evaluate major bioactive compounds in mate (Ilex paraguariensis) tea were developed.
Pedro Kaltbach +3 more
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HPTLC-bioautography/SERS screening nifedipine adulteration in food supplement based on Ginkgo biloba
, 2020Ginkgo biloba was a popular phytomedicine as the essential ingredient of many food supplement. In this work, a bio-inspired HPTLC method was proposed for the visualized screening of nifedipine adulteration in food supplement based on Gingko biloba.
Chen Yisheng +5 more
semanticscholar +1 more source
Quantitative HPTLC determination of selenium
Journal of High Resolution Chromatography, 1986AbstractThe present determination of selenium in biological matrices by HPTLC with in situ fluorimetric detection is an accurate alternative method, comparable to other established methods such as photometry, polarography, neutron activation, or X‐ray fluorescence analysis, gas chromatography, and atomic absorption spectrometry.The excellent ...
W. Funk +4 more
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, 2020
A strategy combining untargeted and targeted chemical profiling for discrimination of the different subspecies of Hedera helix L (Ivy) based on HPTLC fingerprints and antioxidant and antimicrobial activity testing followed by chemometric analysis has been
Eman Shawky, Samah M. El Sohafy
semanticscholar +1 more source
A strategy combining untargeted and targeted chemical profiling for discrimination of the different subspecies of Hedera helix L (Ivy) based on HPTLC fingerprints and antioxidant and antimicrobial activity testing followed by chemometric analysis has been
Eman Shawky, Samah M. El Sohafy
semanticscholar +1 more source
Recent trends in image evaluation of HPTLC chromatograms
, 2020In the current article, an overview of recent applications and opportunities of image evaluation of high-performance thin-layer chromatograms (HPTLC) in food analysis and natural product research is presented.
Petar M. Ristivojević +3 more
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Process Steps for HPTLC Analysis
2023This chapter briefly discusses the general aspects that can affect the result of TLC. Sample preparation, application of samples, preparation of development solvents, the steps involved in the development of TLC, visualization and derivatization, and detection of analyte are the key steps of chromatographic development.
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HPTLC determination of diclofenac sodium from serum
Journal of Pharmaceutical and Biomedical Analysis, 2002Diclofenac sodium is one of the potent Non Steroidal Anti-Inflammatory Drugs (NSAID) used in the treatment of inflammatory conditions. The present work deals with the estimation of diclofenac sodium from serum by a novel High Performance Thin Layer Chromatographic (HPTLC) method developed in our laboratory.
L G, Lala, P M, D'Mello, S R, Naik
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