Separation and Identification of Higher Fullerenes by High-Performance Liquid Chromatography Coupled with Electrospray Ionization Mass Spectrometry

Kiyokatsu Jinno, Yoichiro Sato, Hideo Nagashima, Kenji Itoh

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

The separation and identification of higher fullerenes extracted from carbon soot were studied using high-performance liquid chromatography coupled with electrospray ionization mass spectrometry (LC-ESI-MS). The mixture of fullerenes extracted from carbon soot was first separated by a preparative-scale column packed with monomeric octadecylsilica (ODS), which mainly controls the elution order of fullerenes by their relative molecular mass. Then five batches of the fraction which should contain higher fullerenes larger than C84 were collected and subsequently concentrated, followed by analytical-scale separation with a polymeric ODS column, which can elute fullerenes according to their shape and structure. Therefore, this stationary phase can separate many isomers of higher fullerenes. By identification using LC-ESI-MS, the existence of several higher fullerenes up to C98 and their isomers were confirmed. Temperature effects in the separation of fullerenes were also examined and the results indicated that separation of C82 and C84 isomers could be achieved at a column temperature lower than 15°C using a polymeric ODS column.

Original languageEnglish
Pages (from-to)79-88
Number of pages10
JournalJournal of Microcolumn Separations
Volume10
Issue number1
DOIs
Publication statusPublished - 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Filtration and Separation

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