Polyamide layer chromatography. XIX. Repeated use of polyamide layers.
D000409:Alanine / Q000032:analysis; D000577:Amides; D002855:Chromatography, Thin Layer; D003374:Coumarins / Q000032:analysis; D008722:Methods; D009596:Nitrophenols / Q000032:analysis; D009705:Nucleosides / Q000032:analysis
D000577:Amides; D003374:Coumarins; D009596:Nitrophenols; D009705:Nucleosides; D000409:Alanine