HPLC retention behavior of poly-aromatic-hydrocarbons on aminopropyl silica gels modified with Cu(II)- and Ni(II)-phthalocyanine derivatives in non-polar eluent.
A comparative study was conducted to elucidate the mechanism underlying the separation of poly-aromatic-hydrocarbons (PAHs) and related compounds thereof on a column packed with silica gels modified with Ni(II)- or Cu(II)-phthalocyanine derivatives (PCS) (Ni- or Cu-PCS(D) column) and commercially available PYE and NPE columns with a non-polar eluent, such as n-hexane. It has been revealed that the dominant interaction responsible to the separation of PAHs on the Cu-PCS(D) and the PYE columns with n-hexane is the pi-pi interaction; however, in the separation of PAHs having 4 rings such as pyrene on the Ni-PCS(D) column, participation of pi-d interaction was indicated. The predominant role of pi-pi interaction in the separation of PAHs of less than three rings on the Ni-PCS(D) column was demonstrated using anthracene. All the columns possessed planar recognition ability and were estimated to be potentially useful in the separation and the analysis of PAHs.
Akizawa
Hiromichi
H
Faculty of Pharmaceutical Sciences, Okayama University, Tsushima-Naka, Okayama 700-8530, Japan.
Kitamura
Yuji
Y
Yamane
Minako
M
Iwado
Akimasa
A
Oda
Junko
J
Mifune
Masaki
M
Motohashi
Noriko
N
Haginaka
Jun
J
Saito
Yutaka
Y
D000873:Anthracenes / Q000737:chemistry; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002851:Chromatography, High Pressure Liquid; D003300:Copper / Q000737:chemistry*; D007202:Indicators and Reagents; D007211:Indoles / Q000737:chemistry*; D007475:Ion Exchange Resins; D054833:Isoindoles; D009281:Naphthalenes / Q000737:chemistry; D009532:Nickel / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D012997:Solvents; D013451:Sulfonic Acids / Q000737:chemistry
D000873:Anthracenes; D007202:Indicators and Reagents; D007211:Indoles; D007475:Ion Exchange Resins; D054833:Isoindoles; D009281:Naphthalenes; D011084:Polycyclic Aromatic Hydrocarbons; D012997:Solvents; D013451:Sulfonic Acids; C021611:aminopropyl silica gel; D012822:Silicon Dioxide; D003300:Copper; D009532:Nickel; C035016:9-nitroanthracene; C013647:phthalocyanine