Effect of the substituents of β-diketonato ligands on RF values of tris(chelate) transition metal complexes obtained by normal- and reversed-phase thin-layer chromatography on unmodified silica gel

1991 ◽  
Vol 585 (2) ◽  
pp. 359-363 ◽  
Author(s):  
Ž.Lj. Tešić ◽  
T.J. Janjić ◽  
M.B. Ćelap
1992 ◽  
Vol 626 (2) ◽  
pp. 305-309 ◽  
Author(s):  
T.J. Janjić ◽  
V. Živković ◽  
G. Vučković ◽  
M.B. Ćelap

1992 ◽  
Vol 609 (1-2) ◽  
pp. 427-431 ◽  
Author(s):  
Gordana Vucˇkovic´ ◽  
Diana Miljevic´ ◽  
Tomislav J. Janjic´ ◽  
Milenko B.C´elap

INDIAN DRUGS ◽  
2015 ◽  
Vol 52 (12) ◽  
pp. 42-48
Author(s):  
P. J. Patel ◽  
◽  
D. A Shah ◽  
F. A. Mehta ◽  
U. K. Chhalotiya

A simple, sensitive and precise high performance thin layer chromatographic (HPTLC)method has been developed for the estimation of ondansetron (OND) and ranitidine (RAN) in combination. The method was employed on thin layer chromatography (TLC) and aluminium plates were precoated with silica gel 60 F254 as the stationary phase, while the solvent system was methanol. The Rf values were observed to be 0.5 ± 0.02, and 0.3 ± 0.02 for OND and RAN, respectively. The separated spots were densitometrically analyzed in absorbance mode at 299 nm. This method was linear in the range of 25-300 ng/band for OND and 50-600 ng/band for RAN. The limits of detection for OND and RAN were found to be 3.47 and 1.83 ng/band, respectively. The limits of quantification for OND and RAN were found to be 10.53 and 5.55 ng/band, respectively. The proposed method was validated with respect to linearity, accuracy, precision and robustness. The method was successfully applied to the estimation of OND and RAN in combined dosage form.


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