Separation of 5' -Mono, Di- and Triphosphates of 1- -D-Arabinofuranosylcytosine and of 1- -D-Arabinofuranosyluracil by Thin-Layer and High Pressure Liquid Chromatography

Abstract
The separation of all the 5′-mono-, di- and triphosphates of ara-C and ara-U by thin-layer (TLC) and high pressure liquid chromatography (HPLC) is described. Whereas for the TLC two different systems are necessary, HPLC allows a rapid separation of all the nucleotides with high resolution, reproducibility, and sensitivity within 15 minutes. An example of an HPLC separation of ara-C and ara-U nucleotides derived from a biological sample is presented.