Saroj Kumar Paul

Identification, characterization and quantification of new impurities by LC–ESI/MS/MS and LC–UV methods in rivastigmine tartrate active pharmaceutical ingredient

Saji Thomas, Sanjeev Shandilya, Amber Bharati et al. · Journal of Pharmaceutical and Biomedical Analysis · 2011 · 25 citations

Medicinal Chemistry, Pharmaceutical Science, Medicine +12

Identification and structural elucidation of an unknown impurity in carbamazepine active pharmaceutical ingredient by liquid chromatography–tandem mass spectrometry and semi-preparative chromatographic isolation

Saji Thomas, C. S. Mathela, Ashutosh Agarwal et al. · Journal of Pharmaceutical and Biomedical Analysis · 2011 · 12 citations

Unknown Impurity, Medicinal Chemistry, Pharmaceutical Science +13

Identification, synthesis and characterization of an unknown process related impurity in eslicarbazepine acetate active pharmaceutical ingredient by LC/ESI–IT/MS, 1H, 13C and 1H–1H COSY NMR

Saji Thomas, Saroj Kumar Paul, Subhash Chandra Joshi et al. · Journal of Pharmaceutical Analysis · 2013 · 11 citations · Full text

Identification and structural elucidation of two process impurities and stress degradants in darifenacin hydrobromide active pharmaceutical ingredient by LC-ESI/MSn

Saji Thomas, Saroj Kumar Paul, Sanjeev Shandilya et al. · The Analyst · 2012 · 11 citations

Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Science +15