Effect of acidic mobile phase additives on the TLC behaviour of some alkaloids

Czasopismo : Acta Chromatographica
Tytuł artykułu : Effect of acidic mobile phase additives on the TLC behaviour of some alkaloids


5th International Symposium on Chromatography of Natural Products ISCNP (19-22.06.2006 ; Lublin, Poland)

Autorzy :
Bartnik, M.
Department of Pharmacognosy with Medicinal Plant Laboratory, Medical University, 1, Chodźki Str., 20-093 Lublin, Poland,
Kowalski, R.
Subdepartment of Food Quality Assessment and Central Apparatus Laboratory, Agricultural University, 20-950 Lublin, Akademicka 13, Poland,
Polak, B.
Department of Physical Chemistry, Faculty of Pharmacy, Medical University, Lublin, Poland,
Abstrakty : The effect of two acids (phosphoric and acetic) and their derivatives (hydrogen di(2-ethylhexyl)orthophosphoric, chloroacetic, dichloroacetic, trichloroacetic, and trifluoroacetic acids) on the retention of selected alkaloids on silica gel plates has been investigated. The dependence of the chromatographic behaviour of the alkaloids on mobile phase diluent and on the concentration of the acids in mobile phase (0.001, 0.005, or 0.01 M) was also investigated. Higher concentrations of acid resulted in reduced adsorption and larger RF values.

Słowa kluczowe :
Wydawnictwo : University of Silesia in Katowice
Rocznik : 2007
Numer : No. 18
Strony : 24 – 35
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Cytuj : Bartnik, M. ,Kowalski, R. ,Polak, B. , Effect of acidic mobile phase additives on the TLC behaviour of some alkaloids. Acta Chromatographica No. 18/2007