Abstract − Analytical Sciences, 18(2), 151 (2002).
Retention of Anions on Silica-basedMetalloporphyrin Stationary Phases
Magdalena BIESAGA, Elzbieta STOLARCZYK,Krystyna PYRZYNSKA, and Marek TROJANOWICZ
Department of Chemistry, WarsawUniversity, Pasteura 1, 02-093 Warsaw, Poland
The silica-based Fe(III)-protoporphyrin andZn-tetraphenylporphyrin stationary phases were examined for the HPLCseparation of anions. The retention of nine common inorganic anions aswell as benzoate anion (BA) and its hydroxy analogues (HBA) was examinedusing tartrate, acetate, and succinate eluents. The retention factors ofinorganic anions on the FeProP stationary phase were in the order Cl- < NO3- < ClO4- - < SCN- and for organic anions benzoate <p-hydroxybenzoate < m-hydoxybenzoate <o-hydroxybenzoate. The retention factors of organic anions examinedfor a ZnTPP column were in the order p-HBA < m-HBA < BA <o-HBA.
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