DIMETHOXYPHENYLPROPYL BONDED SILICA PHASE FOR HIGHER FULLERENES SEPARATION BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY

Fullerenes were separated using three chemically bonded phases, dimeth oxyphenylpropyl (DMP), monomeric octadecyl and polymeric octadecyl mod ified silicas (ODS), with n-hexane as the mobile phase- DMP and the mo nomeric ODS are the best choices for the separation of C60 and C70 com pounds, while DMP is the only phase that has high temperature stabilit y while. maintaining the resolution. For the separation of higher full erenes, DMP offers faster analysis at higher temperatures while mainta ining its high resolution, whereas ODS phases cannot provide similar r un times while offering the same resolution. In conclusion, DMP is the most suitable and promising stationary phase for fullerenes analysis because of the short run time and its superior separation efficiency.