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pro vyhledávání: '"Fred Rabel"'
Autor:
Joseph Sherma, Fred Rabel
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 43:394-412
One of the most important contributions to the analysis of mixtures using TLC/HPTLC has been the interface device allowing for direct elution of the sample spots from the developed TLC/HPTLC plate ...
Autor:
Joseph Sherma, Fred Rabel
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 42:367-379
Publications reporting thin layer chromatography (TLC) screening and high performance TLC (HPTLC)-densitometry quantification analyses of counterfeit pharmaceutical products are reviewed for the 2008–2019 period. Screening using TLC methods publish
Autor:
Joseph Sherma, Fred Rabel
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 41:1052-1065
Publications reporting techniques and applications of thin layer chromatography (planar chromatography) for the separation, detection, qualitative and quantitative determination, and preparative is...
Autor:
Fred Rabel, Joseph Sherma
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 41:645-657
This paper reviews advances in qualitative and quantitative thin layer chromatography analytical methods published from 2000–2018 for assessing quality, adulteration, and authenticity of foods, bev...
Autor:
Joseph Sherma, Fred Rabel
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 41:73-82
Thin-layer chromatography is a convenient analytical tool for the analysis of sunscreen containing products. This paper covers the details of performing the essential steps in the analysis of both ...
Autor:
Joseph Sherma, Fred Rabel
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 40:165-176
The state of the art of preparative thin-layer chromatography (PTLC) based on the literature published from 2007 through 2016 is reviewed. Classical capillary flow PTLC, forced flow PTLC, precoated and laboratory prepared plates, instruments, and mic
Autor:
Fred Rabel, Joseph Sherma
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 39:627-639
Although there are many simple thin-layer chromatography (TLC) separations, many more are complex and involve more than a few components, that means having to use special high-performance TLC (HPTLC) plates or microspotting or banding devices to incr
Autor:
Joseph Sherma, Fred Rabel
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 39:385-393
Thin-layer chromatography (TLC) had its initial growth in the 1950s when TLC sorbents and devices for making TLC plates in the analytical laboratory became available. A resurgence in TLC use occurred when commercially prepared plates became available
Autor:
Fred Rabel
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 43:413-413
This year the HPTLC Association was allowed to organize and chair a session at the EAS meeting, held November 17–19, 2019. The HPTLC Association was organized by researchers and manufacturers in Eu...
Autor:
Joseph Sherma, Fred Rabel
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 42:225-226