Valliappan Kannappan

An improved HPLC method with the aid of a chemometric protocol: Simultaneous analysis of amlodipine and atorvastatin in pharmaceutical formulations

Thanikachalam Sivakumar, Rajappan Manavalan, Chandrasekharan Muralidharan et al. · Journal of Separation Science · 2007 · 66 citations

Pharmaceutical Science, Statistical Experimental Design, Pharmacotherapy +19

Stability-Indicating HPLC Method for Simultaneous Determination of Pantoprazole and Domperidone from their Combination Drug Product

Sivakumar Thanikachalam, Rajappan Manavalan, Valliappan Kannappan · Chromatographia · 2007 · 45 citations

Biochemistry, Gas Chromatography, Medicine +13

Simultaneous enantioseparation and purity determination of chiral switches of amlodipine and atenolol by liquid chromatography

Valliappan Kannappan, Sai Sandeep Mannemala · Journal of Pharmaceutical and Biomedical Analysis · 2015 · 38 citations

Chiral Switches, Medicine, Drug Purity +7

DEVELOPMENT AND VALIDATION OF A REVERSED-PHASE HPLC METHOD FOR SIMULTANEOUS DETERMINATION OF DOMPERIDONE AND PANTOPRAZOLE IN PHARMACEUTICAL DOSAGE FORMS

Sivakumar Thangavel, R. Manavalan, Valliappan Kannappan · Acta Chromatographica · 2007 · 32 citations

Medicinal Chemistry, Gas Chromatography, Development And Validation +15

GLOBAL OPTIMIZATION USING DERRINGER'S DESIRABILITY FUNCTION: ENANTIOSELECTIVE DETERMINATION OF KETOPROFEN IN FORMULATIONS AND IN BIOLOGICAL MATRICES

T Sivakumar, R. Manavalan, Valliappan Kannappan · Acta Chromatographica · 2007 · 30 citations

Pharmaceutical Science, Engineering, Pharmacodynamic Modeling +21