A. Witek et al., CHROMATOGRAPHIC-SEPARATION OF BISOPROLOL, LABETALOL AND PROPAFENONE IN THE FORM OF DABSYL DERIVATIVES, Chemia Analityczna, 43(5), 1998, pp. 817-822
Thin-Layer chromatography application for the separation and identific
ation of bisoprolol, tabetalol and propafenone as their dabsyl derivat
ives is described. These compounds were converted to the chromophoric
dabsyl derivatives and chromatographed on silica gel and aluminium oxi
de plates by ascending development, using various solvent systems. The
detection limits of dabsyl derivatives on aluminium oxide plates were
2.5x10(-11), 2.5x10(-10) and 1x10(-9) mol/spot for labetalol, propafe
none and bisoprolol, respectively.