Topic
Thin-layer chromatography
About: Thin-layer chromatography is a research topic. Over the lifetime, 7494 publications have been published within this topic receiving 124179 citations. The topic is also known as: TLC.
Papers published on a yearly basis
Papers
More filters
TL;DR: The gingerol compounds of freeze-dried ginger (Zingiber officinale Roscoe) were extracted by liquid carbon dioxide (600-700 p.s.i.), isolated by thin-layer chromatography and fractionated into individual gingerols by preparative high-performance liquid chromatography as discussed by the authors.
34 citations
34 citations
TL;DR: It was possible to separate cholic, chenodeoxycholic, deoxycholics, and lithocholic acids from one another by thin-layer chromatography and application to a biological bile sample was demonstrated.
34 citations
TL;DR: A combination of silicic acid column and thin layer chromatography which separates γ- and δ-hydroxy acid containing glycerides from butterfat is described, indicating that the hydroxy acids are entirely esterified to the glyceride in fresh butterfat.
Abstract: A combination of silicic acid column and thin layer chromatography which separates γ- and δ-hydroxy acid containing glycerides from butterfat is described. This procedure facilitates the isolation of the γ- and δ-hydroxy acids (lactone precursors) while avoiding lactonization. The method indicated that the hydroxy acids are entirely esterified to the glyceride in fresh butterfat. Hydrolysis, using pancreatic lipase, showed that these polar acids are located on the α-positions of the glycerides. The γ-lactones of 4-hydroxy octanoic and 4-hydroxy nonanoic acids were tentatively identified by gas liquid chromatography. These occurred in quantities of 0.25–0.5 ppm and approximately 0.2 ppm respectively in the butterfat samples investigated.
34 citations