| Microencapsulation: a vital technique in novel drug delivery system P Venkatesan, R Manavalan, K Valliappan Journal of Pharmaceutical Sciences and Research 1 (4), 26-35, 2009 | 180 | 2009 |
| Multi-criteria decision making approach and experimental design as chemometric tools to optimize HPLC separation of domperidone and pantoprazole T Sivakumar, R Manavalan, C Muralidharan, K Valliappan Journal of Pharmaceutical and Biomedical Analysis 43 (5), 1842-1848, 2007 | 145 | 2007 |
| An improved HPLC method with the aid of a chemometric protocol: simultaneous analysis of amlodipine and atorvastatin in pharmaceutical formulations T Sivakumar, R Manavalan, C Muralidharan, K Valliappan Journal of separation science 30 (18), 3143-3153, 2007 | 93 | 2007 |
| Stability-indicating HPLC method for simultaneous determination of pantoprazole and domperidone from their combination drug product S Thanikachalam, M Rajappan, V Kannappan Chromatographia 67, 41-47, 2008 | 66 | 2008 |
| Development of a HPLC Method for the Simultaneous Determination of Losartan Potassium and Atenolol in Tablets. T Sivakumar, P Venkatesan, R Manavalan, K Valliappan Indian journal of pharmaceutical sciences 69 (1), 2007 | 61 | 2007 |
| ORIGINAL PAPER EXTENDED HANSEN’S SOLUBILITY APPROACH: MELOXICAM IN INDIVIDUAL SOLVENTS PRS Babu, CVS Subrahmanyam, J Thimmasetty, R Manavalan, ... Pak. J. Pharm. Sci 20 (4), 311-316, 2007 | 56 | 2007 |
| Impurity profiling: theory and practice P Venkatesan, K Valliappan Journal of pharmaceutical sciences and research 6 (7), 254, 2014 | 53 | 2014 |
| Global optimization using Derringer's desirability function: enantioselective determination of ketoprofen in formulations and in biological matrices T Sivakumar, R Manavalan, K Valliappan Acta Chromatographica, 29-47, 2007 | 52 | 2007 |
| Development and validation of a reversed-phase HPLC method for simultaneous determination of domperidone and pantoprazole in pharmaceutical dosage forms T Sivakumar, R Manavalan, K Valliappan Acta chromatographica, 130-142, 2007 | 52 | 2007 |
| Chemometric technique for the optimization of chromatographic system: Simultaneous HPLC determination of Rosuvastatin, Telmisartan, Ezetimibe and Atorvastatin used in combined … VS Janardhanan, R Manavalan, K Valliappan Arabian journal of chemistry 9, S1378-S1387, 2016 | 51 | 2016 |
| Mouth dissolving tablets: an overview M Swamivelmanickam, R Manavalan, K Valliappan, A Nagar Mouth 4 (5), 2010 | 50 | 2010 |
| Solubility enhancement of cox-II inhibitors by cosolvency approach PRS Babu, CVS Subrahmanyam, J Thimmasetty, R Manavalan, ... Dhaka University Journal of Pharmaceutical Sciences 7 (2), 119-126, 2008 | 49 | 2008 |
| Simultaneous enantioseparation and purity determination of chiral switches of amlodipine and atenolol by liquid chromatography V Kannappan, SS Mannemala Journal of pharmaceutical and biomedical analysis 120, 221-227, 2016 | 40 | 2016 |
| Preparation and evaluation of sustained release loxoprofen loaded microspheres P Venkatesan, R Manavalan, K Valliappan Journal of basic and clinical pharmacy 2 (3), 159, 2011 | 39 | 2011 |
| A simple and validated RP-HPLC method for the estimation of methylcobalamin in bulk and capsule dosage form J Saravanan, A Shajan, NH Joshi, R Varatharajan, K Valliappan International Journal of Chemical and Pharmaceutical Sciences 1 (2), 13-16, 2010 | 34 | 2010 |
| Stability-indicating HPLC method for the simultaneous determination of pantoprazole, rabeprazole, lansoprazole and domperidone from their combination dosage forms VS Janardhanan, R Manavalan, K Valliappan Int. J. Drug Dev. Res 3, 323-335, 2011 | 33 | 2011 |
| Selection of better method for the preparation of microspheres by applying Analytic Hierarchy Process P Venkatesan, C Muralidharan, R Manavalan, K Valliappan Journal of Pharmaceutical Sciences and Research 1 (3), 69, 2009 | 32 | 2009 |
| Solubility of meloxicam in mixed solvent systems PR Babu, CV Subrahmanyam, J Thimmasetty, R Manavalan, ... Ethiopian Pharmaceutical Journal 25 (1), 23-28, 2007 | 29 | 2007 |
| Direct chiral HPLC method for the simultaneous determination of warfarin enantiomers and its impurities in raw material and pharmaceutical formulation: application of … K Valliappan, SJ Vaithiyanathan, V Palanivel Chromatographia 76, 287-292, 2013 | 20 | 2013 |
| Aspect of validation in HPLC method development for pharmaceutical analysis-comparison of validation requirements by FDA, USP And ICH. Inter R Suresh, VJ Sree, R Manavalan, K Vallippan J. Pharm. S cienc e 1 (12), 123-132, 2010 | 19 | 2010 |
