Separation Characteristics of Aminopropyl Silica Gels Modified with Copper-Phthalocyanine as High Performance Liquid Chromatography Stationary Phase

Masaki Mifune, Yoshihiro Mori, Midori Onoda, Akimasa Iwado, Noriko Motohashi, Jun Haginaka, Yutaka Saito

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Separation characteristics of aminopropyl silica gels modified with copper-phthalocyanine (Cu-PCSD) were investigated in comparison with those of a pyrene stationary phase (PYE). By the use of alkylbenzenes as samples, we have found that the π-π electron interaction is dominant in the separation mode of a column packed with Cu-PCSD, while the hydrophobic interaction with alkyl groups participates in the separation mode of a PYE column. The separation factor (αn′+1) of a polyaromtitic hydrocarbon (PAH) having n′+1 aromatic rings by a PAH having n′ aromatic rings is larger than that obtained from the PYE column. In particular, when n′ is 3, αn′+1 is more than 6 times that of the PYE column in the maximum value. In addition, the planar recognition ability of the Cu-PCSD column is much better than that of the PYE column. The above results indicate that the separation characteristics of Cu-PCSD are mainly due to the π-π electron interaction based on Cu-PCS bound in parallel to the surface of the aminopropyl silica gel.

Original languageEnglish
Pages (from-to)1127-1131
Number of pages5
JournalAnalytical Sciences
Volume14
Issue number6
Publication statusPublished - 1998

Fingerprint

High performance liquid chromatography
Hydrocarbons
Electrons
copper phthalocyanine
aminopropyl silica gel

Keywords

  • π-π electron interaction
  • Aminopropyl silica gel
  • Copper-phthalocyanine-based phase
  • Modification
  • Polyaromatic hydrocarbon
  • Separation characteristics

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Separation Characteristics of Aminopropyl Silica Gels Modified with Copper-Phthalocyanine as High Performance Liquid Chromatography Stationary Phase. / Mifune, Masaki; Mori, Yoshihiro; Onoda, Midori; Iwado, Akimasa; Motohashi, Noriko; Haginaka, Jun; Saito, Yutaka.

In: Analytical Sciences, Vol. 14, No. 6, 1998, p. 1127-1131.

Research output: Contribution to journalArticle

Mifune, Masaki ; Mori, Yoshihiro ; Onoda, Midori ; Iwado, Akimasa ; Motohashi, Noriko ; Haginaka, Jun ; Saito, Yutaka. / Separation Characteristics of Aminopropyl Silica Gels Modified with Copper-Phthalocyanine as High Performance Liquid Chromatography Stationary Phase. In: Analytical Sciences. 1998 ; Vol. 14, No. 6. pp. 1127-1131.
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