"Retention of Fullerenes by Octadecyl Silica. Correlation with NMR Spectra at Low Temperatures" by H. Ohta

Selected Works of Maria T. Matyska-Pesek

Follow Contact

Article

Retention of Fullerenes by Octadecyl Silica. Correlation with NMR Spectra at Low Temperatures

Chromatographia (1995)

H. Ohta, Toyohashi University of Technology
Y. Saito, Toyohashi University of Technology
K. Jinno, Toyohashi University of Technology
J. J. Pesek, San Jose State University
Maria T. Matyska-Pesek, San Jose State University
Y. L. Chen
J. Archer
J. C. Fetzer
W. R. Biggs

Link

Abstract

The temperature effect on the retention of fullerenes in the range 80°C to −70°C in liquid chromatography (LC) has been examined using octadecylsilica stationary phases (ODS). It has been found that the maximum retention temperature lies around −10°C with a highly carbon loaded ODS phase. Solid state CPMAS NMR measurements on the stationary phases indicated that the relaxation time at the 30 ppm methylene signal changes with the temperature and has a minimum relaxation time at the temperature which closely matches the maximum retention temperature observed in chromatography. The interpretation of both NMR spectroscopic and LC chromatographic data are discussed.

Disciplines

Analytical Chemistry

Publication Date

1995

Publisher Statement

SJSU users: use the following link to login and access the article via SJSU databases

Citation Information

H. Ohta, Y. Saito, K. Jinno, J. J. Pesek, et al.. "Retention of Fullerenes by Octadecyl Silica. Correlation with NMR Spectra at Low Temperatures" Chromatographia Vol. 40 Iss. 9-10 (1995)
Available at: http://works.bepress.com/maria_matyska-pesek/108/