High-capacity stationary phases containing heavy atoms for HPLC separation of fullerenes

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Analytical Chemistry (Washington)

DOI:https://doi.org/10.1021/ac00111a010· OSTI ID:91242

Kimata, Kazuhiro ^[1]; Hirose, Tsunehisa ^[1]; Moriuchi, Kouji; Hosoya, Ken; Araki, Takeo; Tanaka, Nobuo ^[2]

---

1. Nacalai Tesque, Inc., Muko (Japan)
2. Kyoto Inst. of Technology (Japan)

A high-capacity stationary phase for the separation of fullerenes was prepared by immobilizing 3-[(pentabromobenzyl)oxy]propylsilyl (PBB) groups onto silica surfaces. The stationary phase was developed by a reciprocal approach. This was possible by finding the structure of solvents that provided high solubilities as well as high eluent strength for chromatographic elution of fullerenes. The increased solubility and increased eluent strength for C{sub 60} seen with solvents containing heavy heteroatoms suggested the preferential interaction of C{sub 60} with such solvent molecules. The stationary phases containing sulfur, chlorine, or bromine in fact resulted in longer retention of fullerenes. The PBB silica showed high retentivity with excellent efficiency for fullerenes, permitting the use of solvents providing high solubilities, such as carbon disulfide and 1,2,4-trichlorobenzene for gramscale separations with ordinary HPLC equipment. 22 refs., 6 figs., 3 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 91242
• Journal Information: Analytical Chemistry (Washington), Journal Name: Analytical Chemistry (Washington) Journal Issue: 15 Vol. 67; ISSN ANCHAM; ISSN 0003-2700
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
BROMINE
CARBON SULFIDES
CHLORINE
FULLERENES
HALOGENATED AROMATIC HYDROCARBONS
LIQUID COLUMN CHROMATOGRAPHY
ORGANOMETALLIC COMPOUNDS
SILICA
SOLUBILITY
SOLVENTS
SULFUR