W. Krawczyk

Application of chemometric methods in searching for illicit Leuckart amphetamine sources

Andrzej Parczewski, A. Parczewski, Waldemar Krawczyk, 2001 .

Impurity profiling/comparative analyses of samples of 1-phenyl-2-propanone.

W Krawczyk, T Kunda, I Perkowska, 2005, Bulletin on narcotics.

Effect of the stationary phase on the retention indices of dimethylformamidines, dimethylacetamidines and primary amines☆

J. Oszczapowicz, J. Osek, W. Krawczyk, 1986 .

Amidines. Part 30. Influence of substitution at amino nitrogen atom on pKavalues of N2-phenylacetamidines and N2-phenylformamidines

J. Oszczapowicz, W. Krawczyk, Przemyslaw Łyźwiński, 1990 .

Gas chromatographic analysis of tautomerizing amidines : Retention indices of N,N′-diphenylformamidines on a non-polar column

J. Oszczapowicz, J. Jaroszewska-Manaj, J. Osek, 1986 .

Retention indices of dimethylbenzamidines and benzylideneamines on a non-polar column

J. Oszczapowicz, J. Osek, K. Ciszkowski, 1985 .