125Vivek Dhiman, Dilip Kumar Singh, Mayurbhai Kathadbhai Ladumor and Saranjit Singh, Characterization of stress degradation products of amodiaquine dihydrochloride by liquid chromatography-high resolution mass spectrometry and prediction of their properties by ADMET PredictorTM, Journal of Separation Science, (accepted).
124Moolchand Kurmi, Neha Patel, Shalu Jhajra, Prasad V. Bharatam and Saranjit  Singh, Characterization of Forced Degradation Products of Torasemide through MS Tools and Explanation of Unusual Losses Observed during Mass Fragmentation of Drug and Degradation Products through Density Functional Theory, Journal of Pharmaceutical and Biomedical Analysis, 145, 209–218 (2017).
123Moolchand Kurmi, Saranjit Singh, Stability behaviour of antiretroviral drugs and their combinations. 7: Comparative degradation pathways of lamivudine and emtricitabine and explanation to their differential degradation behaviour by density functional theory, Journal of Pharmaceutical and Biomedical Analysis, 142, 155–161 (2017).
122Moolchand Kurmi, Archana Sahu, Shobhit K Tiwari, Saranjit Singh, Stability behaviour of antiretroviral drugs and their combinations. 6: Evidence of Formation of Toxic Forced Degradation Products of Zidovudine under Hydrolytic and Photolytic conditions, RSC Advances, 7, 18803 – 18814 (2017).
121Tarun Handa, Shalu Jhajra, Shweta Bhagat, P.V. Bhartam, Asit K. Chakraborti and Saranjit Singh, Molecular Insight into Atypical Instability Behavior of Fixed-Dose Combination Containing Amlodipine Mesylate and Losartan Potassium, Journal of Pharmaceutical and Biomedical Analysis, 136 66–80 (2017).
120Moolchand Kurmi, Archana Sahu, Saranjit Singh, Stability Behaviour of Antiretroviral Drugs and Their Combinations. 5: Characterization of Novel Degradation Products of Abacavir Sulfate by Mass and Nuclear Magnetic Resonance Spectrometry, Journal of Pharmaceutical and Biomedical Analysis, 134, 372–384 (2017).
119Vijaya Madhyanapu Golla, Moolchand Kurmi, Karimullah Shaik, Saranjit Singh, Stability Behaviour of Antiretroviral Drugs and their Combinations. 4: Characterization of Degradation Products of Tenofovir Alafenamide Fumarate and Comparison of its Degradation and Stability Behaviour with Tenofovir Disoproxil Fumarate, Journal of Pharmaceutical and Biomedical Analysis, 131, 146–155 (2016).
118Archana Sahu, Mallikarjun Narayanam, Moolchand Kurmi, Mayur Ladumor, Saranjit Singh, Quantitation of Memantine Hydrochloride Bulk Drug and its Marketed Formulations Using Proton Nuclear Magnetic Resonance Spectrometry, Magnetic Resonance in Chemistry, 54(8):632-636 (2016).
117Moolchand Kurmi, Dilip Kumar Singh, Shristy Tiwari, Parul Sharma, Saranjit Singh, Stability Behaviour of Antiretroviral Drugs and their Combinations. 3: Characterization of Interaction Products of Emtricitabine and Tenofovir Disoproxil Fumarate by Mass Spectrometry, Journal of Pharmaceutical and Biomedical Analysis, 128, 438–446 (2016).
116Moolchand Kurmi, Bhoopendra Singh Kushwah, Archana Sahu, Mallikarjun Narayanam and Saranjit Singh, Stability Behaviour of Antiretroviral Drugs and their Combinations. 2: Characterization of Interaction Products of Lamivudine and Tenofovir Disoproxil Fumarate by Mass and NMR Spectrometry, Journal of Pharmaceutical and Biomedical Analysis, 125, 245–259 (2016).
115Keyur Parmar, Shalu Jhajra, Saranjit Singh Detection of Glutathione Conjugates of Amiodarone and Its Reactive Diquinone Metabolites in Rat Bile Using Mass Spectrometry Tools,  Rapid Communications in Mass Spectrometry, 30 (10), 1242–1248 (2016).
114Dilip Kumar Singh, Moolchand Kurmi, Tarun Handa, Saranjit Singh, LC-MS/TOF, LC-MSn and H/D Exchange Studies on Solifenacin Succinate Targeted to Characterize its Forced Degradation Products, Chromatographia, 79(3)  159-168 (2016)
113Shalu Jhajra and Saranjit Singh, Identification of Stable and Reactive Metabolite(S) of Nelfinavir In Human Liver Microsomes and rCYP3A4, Journal of Pharmaceutical and Biomedical Analysis, 118, 214–227 (2016).
112Ram J Sharma, Ramesh C Gupta, Saranjit Singh, Arvind K Bansal, Inder Pal Singh, Stability of Anthocyanins- and Anthocyanidins-enriched Extracts, and Formulations of Fruit Pulp of Eugenia jambolana (‘Jamun’), Food Chemistry, 190, 808-817 (2016).
111Shah Kinalkumar Pravinchandra, Moolchand Kurmi, Sanjay Kumar, Saranjit Singh, Forced Degradation of Lafutidine and Characterization of its Non-Volatile and Volatile Degradation Products Using LC-MS/TOF, LC-MSn and HS-GC-MS, New Journal of Chemistry (RSC), 39, 9679–9692 (2015).
110Moolchand Kurmi, Vijaya Madhyanapu Golla, Sanjay Kumar, Archana Sahu and Saranjit Singh, Stability Behaviour of Antiretroviral Drugs Alone and in Their Combinations. 1: Characterization of Tenofovir Disoproxil Fumarate Degradation Products by Mass Spectrometry, RSC Advances, 5, 96117-96129 (2015).
109Surapuraju Pavan Kumar Raju, Mallikarjun Narayanam, Banothu Kranthi Kumar, Sreeram Tejaswee and Saranjit Singh, Validated Stability-Indicating Method for Alendronate Sodium Employing Zwitterionic Hydrophilic Interaction Chromatography Coupled With Charged Aerosol Detection, Chromatographia, 78 (19) 1245-1250 (2015).
108Dilip Kumar Singh, Archana Sahu, Tarun Handa, Mallikarjun Narayanam, Saranjit Singh, Comprehensive Study on Forced Degradation Behaviour of Prasugrel Hydrochloride by Use of LC-MS and LC-NMR, and Prediction of Toxicity of the Characterized Degradation Products, Journal of Separation Science. 38 (17) 2995–3005 (2015).
107Mallikarjun Narayanam, Archana Sahu, Saranjit Singh, Use of LC-MS/TOF, LC-MSn, NMR and LC-NMR in characterization of stress degradation products: Application to cilazapril Journal of Pharmaceutical and Biomedical Analysis, 111, 190–203 (2015).
106Kriti Jindal, Mallikarjun Narayanam, Saranjit Singh, A Systematic Strategy for the Identification and Determination of Pharmaceuticals in Environment using Advanced LC–MS Tools: Application to Ground Water Samples, Journal of Pharmaceutical and Biomedical Analysis, 108, 86-96 (2015).
105Shalu Jhajra, Sonam Bhatia, PV Bharatam, Saranjit Singh, Explanation Through Density Functional Theory of the Unanticipated Loss of CO2 and Differences in Mass Fragmentation Profiles of Ritonavir and Its rCYP3A4 Mediated Metabolites, Journal of Mass Spectrometry,  49 (6) 452–467 (2014).
104Moolchand Kurmi, Sanjay Kumar, Bhupinder Singh,5 Saranjit Singh, Implementation of Design of Experiments for Optimization of Forced Degradation Conditions and Development of a Stability-Indicating Method for Furosemide, Journal of Pharmaceutical and Biomedical Analysis, 96, 135–143 (2014).
103Mallikarjun Narayanam, Saranjit Singh, Characterization of Stress Degradation Products of Fosinopril by Using LC-MS/TOF, MSn and On-line H/D Exchange, Journal of Pharmaceutical and Biomedical Analysis, 92, 135–143 (2014).
102Ninad Ramesh Varkhede, Shalu Jhajra, Deepak Suresh Ahire, Saranjit Singh, Metabolite Identification Studies on Amiodarone in In Vitro (Rat Liver Microsomes, Rat And Human Liver S9 Fractions) and In Vivo (Rat Feces, Urine, Plasma) Matrices by Using LC-HRMS and LC-MSn: Characterization of Diquinone Metabolite Supposedly Responsible for the Drug’s Hepatotoxicity, Rapid Communications in Mass Spectrometry, 28 (4) 311-331 (2014).
101Tarun Handa, Inderpal Singh, Saranjit Singh, Characterization of a New Degradation Product of Nifedipine Catalyzed by Atenolol: A Typical Case of Alteration of Degradation Pathway of One Drug by Another, Journal of Pharmaceutical and Biomedical Analysis, 89, 6–17 (2014).
100Ravi P. Shah, Amit Garg, Siva Prasad Putlur, Santosh Wagh, Vineet Kumar, Venugopala Rao, Saranjit Singh, Sandhya Mandlekar, and Sridhar Desikan, A Practical and Economical Implementation of On-line H/D Exchange in LC-MS, Analytical Chemistry, 85, 10904−10912 (2013).
99Lokesh Kumar, Saranjit Singh, Arvind Bansal, Effect of Counterion on the Solid State Photodegradation Behaviour of Prazosin A Salts, AAPS PharmSciTech, 14, 757-763 (2013).
98Ravi P. Shah, Archana Sahu, Saranjit Singh, LC-MS/TOF, LC-MSn, On-line H/D Exchange and LC-NMR Studies on Rosuvastatin Degradation and In-silico Determination of Toxicity of its Degradation Products: A Comprehensive Approach During Drug Development, Analytical and Bioanalytical Chemistry, 405, 3215–3231(2013).
97Mallikarjun Narayanam, Archana Sahu, Saranjit Singh, Characterization of Stress Degradation Products of Benazepril by using Sophisticated Hyphenated Techniques, Journal of Chromatography A, 1271(1), 124-136 (2013).
96Mahendra Junwal, Archana Sahu, Tarun Handa and Ravi P. Shah, Saranjit Singh ICH Guidance in Practice: Degradation Behaviour of Oseltamivir Phosphate under Stress Conditions, Journal of Pharmaceutical and Biomedical Analysis, 62, 48–60 (2012).
95Bhagwat Prasad and Saranjit Singh, In Vitro Reaction Phenotyping Studies on Rifamycins to Explain Auto-induction of Rifabutin Metabolism, The International Journal of Tuberculosis and Lung Disease, 16 (2) 232-234 (2012).
94Dattatray T. Modhave, Tarun Handa, Ravi P. Shah, Saranjit Singh, Successful Characterization of Degradation Products of Drugs using LC-MS Tools: Application to Piroxicam and Meloxicam, Analytical Methods, 3, 2864–2872 (2011).
93Ravi P. Shah, Archana Sahu and Saranjit Singh, Identification and Characterization of Geometrical Isomeric Photo Degradation Product of Eprosartan using LC-MS and LC-NMR, European Journal of Chemistry, 2 (2), 152‐157 (2011).
92Dattatray T. Modhave, Ravi P. Shah, Tarun Handa and Saranjit Singh, Stress Degradation Studies on Lornoxicam using LC, LC-MS/TOF and LC-MSn, Journal of Pharmaceutical and Biomedical Analysis, 56, 538– 545 (2011).
91Amit Garg, Bhagwat Prasad, Hardik Takwani, Meenakshi Jain, Rahul Jain and Saranjit Singh, Evidence of the Formation of Direct Covalent Adducts of Primaquine, 2-Tert-butylprimaquine (NP-96) and Monohydroxy metabolite of NP-96 with Glutathione and N-Acetylcysteine, Journal of Chromatography B, Analytical Technologies in the Biomedical and Life Sciences, 879, 1-7 (2011).
90Bhagwat Prasad and Saranjit Singh, Identification of Rat Urinary Metabolites of Rifabutin using LC-MSn and LC-HR-MS, European Journal of Pharmaceutical Sciences, 41(1), 173-188 (2010).
89Ravi P. Shah and Saranjit Singh, Identification and Characterization of a Photolytic Degradation Product of Telmisartan using LC-MS/TOF, LC-MSn, LC-NMR and on-line H/D exchange mass studies, Journal of Pharmaceutical and Biomedical Analysis,  53(3), 755-761 (2010).
88Dhara K Raijada, Saranjit Singh and Arvind K Bansal, Influence of Microenvironment pH, Humidity, and Temperature on the Stability of Polymorphic and Amorphous Forms of Clopidogrel Bisulfate, AAPS PharmSciTech., 11(1), 197-203 (2010).
87Ravi Shah, Archana Sahu and Saranjit Singh, Identification and Characterization of Degradation Products of Irbesartan using LC-MS/TOF, MSn, On-Line H/D exchange and LC-NMR Studies, Journal of Pharmaceutical and Biomedical Analysis, 51(5), 1037-1046 (2010).
86Bhagwat Prasad and Saranjit Singh, LC-MS/TOF and UHPLC-MS/MS Study of in vivo Fate of Rifamycin Isonicotinyl Hydrazone Formed on Oral Co-administration of Rifampicin and Isoniazid, Journal of Pharmaceutical and Biomedical Analysis, 52(3), 377-383 (2010).
85Surbhi Mehta, Ravi P. Shah and Saranjit Singh, Strategy for Identification and Characterization of Small Quantities of Drug Degradation Products Using LC and LC-MS: Application to Valsartan, A Model Drug, Drug Testing and Analysis, 2(2), 82-90 (2010).
84Sujal J. Mayatra, Bhagwat Prasad, Meenakshi Jain, Saranjit Singh and Rahul Jain, Development and Validation of a Sensitive and Selective UHPLC-MS/MS Method for Quantitation of an Investigational Anti-malarial Compound, 2-Tert-butylprimaquine (NP-96) in Rat Plasma, and its Application in a Preclinical Pharmacokinetic Study, Journal of Pharmaceutical and Biomedical Analysis, 52(3), 410-415 (2010).
83Akash A. Savaliya, Ravi P. Shah, Bhagwat Prasad and Saranjit Singh, Screening of Indian Aphrodisiac Ayurvedic/Herbal Healthcare Products for Adulteration with Sildenafil, Tadalafil and Vardenafil Using LC/PDA and Extracted Ion LC-MS/TOF, Journal of Pharmaceutical and Biomedical Analysis, 52(3), 406-409 (2010).
82Surbhi Mehta, Ravi P. Shah, Rajkamal Priyadarshi and Saranjit Singh, LC and LC–MS/TOF Studies on Stress Degradation Behaviour of Candesartan Cilexetil, Journal of Pharmaceutical and Biomedical Analysis, 52(3), 345-354 (2010).
81Dhara K. Raijada, Bhagwat Prasad, Amrit Paudel, Ravi P. Shah and Saranjit Singh, Characterization of Degradation Products of Amorphous and Polymorphic Forms of Clopidogrel Bisulphate under Solid State Stress Conditions, Journal of Pharmaceutical and Biomedical Analysis, 52(3), 332-344 (2010).
80Akash A Savaliya, Bhagwat Prasad, Dhara K. Raijada and Saranjit Singh, Detection and Characterization of Synthetic Steroidal and Non-steroidal Anti-inflammatory Drugs in Indian Ayurvedic/Herbal Products using LC-MS/TOF, Drug Testing and Analysis (Wiley), 1(8) , 372-381 (2009).
79Bhagwat Prasad and Saranjit Singh, In vitro and in vivo Investigation of Metabolic Fate of Rifampicin Using an Optimized Sample Preparation Approach and Modern Tools of Liquid Chromatography-Mass Spectrometry, Journal of Pharmaceutical and Biomedical Analysis, 50, 475-490 (2009).
78Vijay Kumar, Ravi P. Shah, Satish Malik, Saranjit Singh, Compatibility of Atenolol with Excipients: LC-MS/TOF Characterization of Degradation/Interaction Products, and Mechanisms of their Formation, Journal of Pharmaceutical and Biomedical Analysis, 49(4), 880-888 (2009).
77Gaurav Bedse, Vijay Kumar and Saranjit Singh, Study of Forced Decomposition Behavior of Lamivudine using LC, LC–MS/TOF and MSn, Journal of Pharmaceutical and Biomedical Analysis, 49(1), 55-63 (2009).
76Bhagwat Prasad, Vijay Kumar, Hemant Bhutani and Saranjit Singh, Screening of Bulk Drug Samples and Anti-tuberculosis Products for the Presence of Therapeutically Less Active Diasteriometric(R,S) Form of Ethambutol Dihydrochloride, Indian Journal of Tuberculosis, 55 (4), 192-198 (2008).
75G. Bansal, M. Singh, KC Jindal and Saranjit Singh, LC–UV–PDA and LC–MS Studies to Characterize Degradation Products of Glimepiride, Journal of Pharmaceutical and Biomedical Analysis, 48, 788–795 (2008).
74Vijay Kumar, Satish Malik and Saranjit Singh, Polypill for the Treatment of Cardiovascular Diseases. Part 2. LC-MS/TOF Characterization of Interaction/Degradation Products of Atenolol/Lisinopril and Aspirin, and Mechanism of Formation Thereof, Journal of Pharmaceutical and Biomedical Analysis, 48, 619–628 (2008).
73G. Bansal, M. Singh, KC Jindal and Saranjit Singh, Characterisation of Mass Ionisable Degradation Products of Gliclazide by LC/ESI-MS, Journal of Liquid Chromatography & Related Technologies, 31, 2174-2193 (2008).
72G. Bansal, M. Singh, KC Jindal and Saranjit Singh, LC and LC-MS Study on Establishment of Degradation Pathway of Glipizide Under Forced Decomposition Conditions, Journal of Chromatographic Science, 46, 510-517 (2008).
71G. Bansal, M. Singh, KC Jindal and Saranjit Singh, LC-UV-PDA and LC-MS Studies on Forced Degradation Behaviour of Glibenclamide and Development of a Validated Stability-Indicating Method, Journal of the Association of Official Analytical Chemists (JAOAC), 91(4), 709-719 (2008).
70Vijay Kumar, Ravi P. Shah and Saranjit Singh, LC and LC-MS Methods for the Investigation of Polypills for the Treatment of Cardiovascular Diseases. Part 1. Separation of Active Components and Classification of their Interaction/Degradation Products, Journal of Pharmaceutical and Biomedical Analysis, 47(3), 508-515 (2008).
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Ravi P. Shah, Vijay Kumar and Saranjit Singh, LC and LC-MS Studies on Atorvastatin and its Stress Degradation Products, Rapid Communications in Mass Spectrometry, 22, 613-622 (2008).
68Sunny Piyush Bhardwaj and Saranjit Singh, Study of Forced Degradation Behavior of Enalapril Maleate by LC and LC-MS and Development of a Validated Stability-Indicating Assay Method, Journal of Pharmaceutical and Biomedical Analysis, 46(1), 113-120 (2008).
67T.T. Mariappan and Saranjit Singh, Gastrointestinal Permeability Studies on Combinations of Rifampicin and Nucleoside Analogue Reverse Transcriptase Inhibitors in Rats, Indian Journal of Pharmacology, 39 (6), 284-290 (2007).
66Hemant Bhutani, Saranjit Singh, P. Manchanda and B. Singh, Increase In the Rate of Moisture Gain by Hygroscopic Drugs in the Presence of Non-Hygroscopic Water-Soluble Substances: Study of the Generalization of this Hitherto Unknown Phenomenon, Explanation to its Occurrence and Implications in Formulation Development, Asian Journal of Pharmaceutics, 1(1), 69-76 (2007).
65T.T. Mariappan, N. Sharda and Saranjit Singh, Atypical Log D Profile of Rifampicin, Indian Journal of Pharmaceutical Sciences, 69(2), 197-201 (2007).
64Hemant Bhutani, Saranjit Singh,*, Sanjay Vir, K.K. Bhutani, Raj Kumar, Asit K. Chakraborti, K.C. Jindal, LC and LC-MS Study of Stress Decomposition Behaviour of Isoniazid and Establishment of Validated Stability-Indicating Assay Method, Journal of Pharmaceutical and Biomedical Analysis, 43,  1213–1220 (2007).
63B. Prasad, H. Bhutani, V. Kumar and Saranjit Singh, A New Validated DSC Method for Monitoring of Less Active R,S Isomer of Ethambutol Dihydrochloride in Bulk Drug Samples and Anti-Tuberculosis Formulations, Pharmacopeial Forum (USP), 33(2), 326-333 (2007).
62V. Kumar, H. Bhutani and Saranjit Singh, ICH Guidance in Practice: Validated Stability-Indicating HPLC Method for Simultaneous Determination of Ampicillin and Cloxacillin in Combination Drug Products, Journal of Pharmaceutical and Biomedical Analysis, 43, 769–773 (2007).
61V. Kumar, H. Bhutani and Saranjit Singh, Evaluation of Derivative Spectrophotometry for Simultaneous Determination of Ampicillin and Cloxacillin, Indian Drugs, 43(5), 376-382 (2006).
60B. Prasad, H. Bhutani and Saranjit Singh, Study of the Interaction between Rifapentine and Isoniazid under Acid Conditions, Journal of Pharmaceutical and Biomedical Analysis, 41, 1438–1441 (2006).
59Saranjit Singh, B. Singh, R. Bahuguna, L. Wadhwa and R. Saxena, Stress Degradation Studies on Ezetimibe and Development of a Validated Stability-Indicating Assay, Journal of Pharmaceutical and Biomedical Analysis, 41, 1037–1040 (2006).
58T.T. Mariappan and Saranjit Singh, Positioning of Rifampicin in the Biopharmaceutics Classification System (BCS), Clinical Research and Regulatory Affairs, 23(1), 1-10 (2006).
57T.T. Mariappan, V. Kumar, P. Vijaya, H. Bhutani and Saranjit Singh, Derivative Spectrophotometric Determination of Rifampicin in the Presence of Isonicotinyl Hydrazone in Anti-tuberculosis Fixed-dose Combination (FDC) Products, Indian Drugs, 43(2), 106-111 (2006).
56G.Y.S.K Swamy,  Ravikumar, L.K. Wadhwa, R. Saxena and Saranjit Singh,  (2R*,3R*,6S*)-N,6-Bis(4-fluorophenyl)-2-(4-hydroxyphenyl)-3,4,5,6-tetrahydro-2H-pyran-3-carboxamid, Acta Crystallographica Section E, 61 (11), o3608-o3610 (2005).
55T.T. Mariappan, Saranjit Singh, R. Pandey, and G.K. Khuller, Determination of Absolute Bioavailability of Rifampicin by Varying the Mode of Intravenous Administration and the Time of Sampling, Clinical Research and Regulatory Affairs, 22(3-4), 119-128 (2005).
54Hemant Bhutani, Saranjit Singh, and KC Jindal, Drug-Drug Interaction Studies on First-Line Anti-Tuberculosis Drugs, Pharmaceutical Development and Technology, 10(4), 517-523 (2005).
53N.A. Visalakshi, T.T. Mariappan, Hemant Bhutani, Saranjit Singh, Behavior of Moisture Gain and Equilibrium Moisture Contents (EMC) of Various Drug Substances and Correlation with Compendial Information on Hygroscopicity and Loss on Drying, Pharmaceutical Development and Technology, 10(4), 489-497(2005).
52Ashwani Gaur, Hemant Bhutani, T.T. Mariappan and Saranjit Singh, Behaviour of Marketed Packaged Formulations Under Accelerated Conditions of Temperature and Humidity in the Absence and the Presence of Light. Indian Journal of Pharmaceutical Sciences, 67(4), 438-443 (2005).
51Hemant Bhutani, Saranjit Singh, Asit K. Chakraborti and KC Jindal, Mechanistic explanation to the catalysis by pyrazinamide and ethambutol of reaction between rifampicin and isoniazid in anti-TB FDCs, Journal of Pharmaceutical and Biomedical Analysis, 39, 892–899 (2005).
50Ashwani Gaur, T.T. Mariappan, Hemant Bhutani and Saranjit Singh, Variable Air Velocity within Stability Chambers – A Possible Cause of Out-of-Trend Stability Results, Pharmaceutical Technology, 29(8), 44, 46-49 (2005).
49M. Grover, M. Gulati, B. Singh, Saranjit Singh, RP-HPLC Determination of Hydrophobicity of 22 Penicillins, Their Correlation with Reported Lipophilicity Values and Establishment of Quantitative Structure-log Kw Relationships, QSAR & Combinatorial Science, 24(5), 639-648 (2005).
48A. Dunge, Nishi Sharda, Baljinder Singh, and Saranjit Singh, Establishment of Inherent Stability of Stavudine and Development of a Validated Stability-Indicating HPLC Assay Method, Journal of Pharmaceutical and Biomedical Analysis, 37(5), 1115-1119 (2005).
47A. Dunge, Baljinder Singh, Nishi Sharda and Saranjit Singh, Validated Specific HPLC Method for Determination of Zidovudine during Stability Studies, Journal of Pharmaceutical and Biomedical Analysis, 37(5), 1109-1114 (2005).
46T. T. Mariappan, Saranjit Singh, Rajesh Pandey, Anshika Sharma, Isonicotinyl Hydrazone of Rifampicin and Isoniazid: Should It Be Controlled as a Related Substance (or Impurity) In USP Monographs on Anti-tuberculosis Combination Products? Pharmacopoeial Forum, 31(2), 646-652 (2005).
45Monika Bakshi and Saranjit Singh, ICH Guidance in Practice: Establishment of Inherent Stability of Secnidazole and Development of a Validated Stability-Indicating High-Performance Liquid Chromatographic Assay Method. Journal of Pharmaceutical and Biomedical Analysis, 36(4), 769-775 (2004).
44T.T. Mariappan, K.C. Jindal and Saranjit Singh, Overestimation of Rifampicin During Colorimetric Analysis of Anti-Tuberculosis FDC Products Containing Isoniazid due to Formation of Isonicotinyl Hydrazone. Journal of Pharmaceutical and Biomedical Analysis, 36(4), 905-908 (2004).
43T. T. Mariappan and Saranjit Singh, Evidence of Efflux Mediated and Saturable Absorption of Rifampicin in Rat Intestine Using Ligated Loop and Everted Gut Sac Techniques, Molecular Pharmaceutics, 1(5), 363-367 (2004).
42T.T. Mariappan, Thiraviam Geetha, R. Pandey, K.C. Jindal and Saranjit Singh, Interference of Isonicotinyl Hydrazone in the Microbiological Analysis of Rifampicin from Anti-Tuberculosis FDC Products Containing Isoniazid. Journal of Pharmaceutical and Biomedical Analysis, 36(3), 643-647 (2004).
41Hemant Bhutani, T.T. Mariappan and Saranjit Singh, The Physical and Chemical Stability of Marketed Anti-Tubercular Fixed Dose Combination (FDC) Products under Accelerated Climatic Conditions, The International Journal of Tuberculosis and Lung Disease, 8(9), 1073-1080 (2004).
40A. Dunge, A. K. Chakraborti and Saranjit Singh, Mechanistic Explanation to the Variable Degradation Behavior of Stavudine and Zidovudine under Hydrolytic, Oxidative and Photolytic Conditions, Journal of Pharmaceutical and Biomedical Analysis, 35 (4), 965-970 (2004).
39Hemant Bhutani, T.T. Mariappan and Saranjit Singh, An Explanation for the Physical Instability of a Marketed Fixed Dose Combination (FDC) Formulation Containing Isoniazid and Ethambutol and the Proposed Solutions, Drug Development and Industrial Pharmacy, 30(6), 667-672 (2004).
38Deepti Gholap and Saranjit Singh, Influence of Drugs on Crosslinking of Gelatin, Pharmaceutical Technology, 28(4), 94-102 (2004).
37Monika Bakshi, Tina Ojha and Saranjit Singh, Validated Specific HPLC Methods for Determination of Prazosin, Terazosin and Doxazosin in the Presence of Degradation Products Formed under ICH Recommended Stress Conditions, Journal of Pharmaceutical and Biomedical Analysis, 34, 19-26 (2004).
36Monika Bakshi and Saranjit Singh, HPLC and LC-MS Studies on Stress Degradation Behaviour of Tinidazole and Development of a Validated Specific Stability-Indicating HPLC Assay Method, Journal of Pharmaceutical and Biomedical Analysis, 34, 11-18 (2004).
35Saranjit Singh, T.T. Mariappan and Harpinder Kaur, Behaviour of Uptake of Moisture by Drugs and Excipients under Accelerated Conditions of Temperature and Humidity in the Absence and the Presence of Light. 3. Pure Drugs and Excipients, Pharmaceutical Technology, 27(12), 52-56 (2003).
34Monika Bakshi and Saranjit Singh, ICH Guidance in Practice: Stress Degradation Studies on Metronidazole and Development of a Validated Stability-Indicating HPLC Assay Method. Pharmaceutical Technology, 27(10) 148, 150, 152, 154, 156, 158, 160 (2003).
33T.T. Mariappan and Saranjit Singh, Regional Gastrointestinal Permeability of Rifampicin and Isoniazid (Alone and Their Combination) in the Rat, The International Journal of Tuberculosis and Lung Disease, 7(8), 797-803 (2003).
32Hemant Bhutani, T.T. Mariappan and Saranjit Singh, Behaviour of Uptake of Moisture by Drugs and Excipients under Accelerated Conditions of Temperature and Humidity in the Absence and the Presence of Light. Part II. Packaged and Unpackaged Antituberculosis Drug Products, Pharmaceutical Technology, 27 (6), 44-52 (2003).
31R. Sankar, Nishi Sharda and Saranjit Singh, Behaviour of Decomposition of Rifampicin in the Presence of Isoniazid in the pH Range 1-3, Drug Development and Industrial Pharmacy, 29 (7), 733-738 (2003).
30K.V. Rama Rao, S.P. Pakhale and Saranjit Singh, A ‘Film’ Approach for the Stabilization of Gelatin Preparations against Cross-Linking, Pharmaceutical Technology, 27 (4), 54-62, 84 (2003).
29Saranjit Singh and B. Mohan, A Pilot Stability Study on Anti-Tuberculosis Four-Drug Fixed-Dose Combination Products, The International Journal of Tuberculosis and Lung Disease, 7(3) 298-303 (2003).
28Tina Ojha, Monika Bakshi, A.K. Chakraborti and Saranjit Singh, The ICH Guideline in Practice: Stress Decomposition Studies on Three Piperazinyl Quinazoline Adrenergic Receptor Blocking Agents and Comparison of Their Degradation Behaviour, Journal of Pharmaceutical and Biomedical Analysis, 31(4) 775-783 (2003).
27B. Mohan, Nishi Sharda and Saranjit Singh, Evaluation of the Recently Reported USP Gradient HPLC Method for Analysis of Anti-Tuberculosis Drugs for its Ability to Resolve Degradation Products of Rifampicin, Journal of Pharmaceutical and Biomedical Analysis, 31(3), 607-612 (2003).
26K.V. Rama Rao and Saranjit Singh, Sensitivity of Gelatin Raw Materials to Cross-linking: The Influence of Bloom Strength, Type and Source, Pharmaceutical Technology, 26 (12) 42,44,46 (2002).
25Saranjit Singh, H. Bhutani, T.T. Mariappan, Harpinder Kaur, M. Bajaj, and S.P. Pakhale, Behaviour of Uptake of Moisture by Drugs and Excipients under Accelerated Conditions of Temperature and Humidity in the Absence and the Presence of Light. 1. Pure Anti-Tuberculosis Drugs and their Combinations, International Journal of Pharmaceutics, 245, 37-44 (2002).
24Saranjit Singh, Sanjeev Kumar, Nishi Sharda and A. K. Chakraborti, New Findings on Degradation of Famotidine under Basic Conditions: Identification of Hitherto Unknown Degradation Product and the Condition for Obtaining the Propionamide Intermediate in Pure Form. Journal of Pharmaceutical Sciences, 91 (1), 253-257(2002).
23Monika Bakshi, Baljinder Singh, Amarjit Singh and Saranjit Singh, The ICH Guidelines in Practice: Stress Degradation Studies on Ornidazole and Development of a Validated Stability-indicating Assay. Journal of Pharmaceutical and Biomedical Analysis, 26 (5-6), 891-897 (2001).
22K. Venugopal and Saranjit Singh, Evaluation of Gelatins for Cross-Linking Potential, Pharmaceutical Technology Drug Delivery, Supplement 32-37 (2001).
21Saranjit Singh, T.T. Mariappan, Nishi Sharda and Baljinder Singh, Degradation of Rifampicin, Isoniazid, and Pyrazinamide from Prepared Mixtures and Marketed Single and Combination Products in Acid Conditions. Pharmacy and Pharmacology Communications, 6, 491-494 (2000).
20Saranjit Singh, T.T. Mariappan, Nishi Sharda, Sanjeev Kumar and A.K. Chakraborti, The Reason for an Increase in Decomposition of Rifampicin in Presence of Isoniazid under Acid Conditions, Pharmacy and Pharmacology Communications,. 6, 405-410 (2000).
19M. Grover, M. Gulati, B. Singh, and Saranjit Singh, Correlation of Base Hydrolysis Rate Constants of Penicillins with Structure, Pharmacy and Pharmacology Communications, 6, 355-363 (2000).
18T.T. Mariappan, Baljinder Singh, and Saranjit Singh, A Validated Reversed-phase (C18) HPLC Method for Simultaneous Determination of Rifampicin, Isoniazid and Pyrazinamide in USP Dissolution Medium and Simulated Gastric Fluid, Pharmacy and Pharmacology Communications, 6, 345-349 (2000).
17Saranjit Singh, R. Manikandan and Sukhjeet Singh, Stability Testing for Gelatin Based Formulations: Rapidy Evaluating the Possibility of a reduction in Dissolution Rates, Pharmaceutical Technology, 24(5), 58-72 (2000).
16Saranjit Singh, Nishi Sharda and Lalit Mahajan, Spectrophotometric Determination of pKa of Nimesulide, International Journal of Pharmaceutics, 176, 261(1999).
15Bhupinder Singh and Saranjit Singh, ZOREL: A Computer Program for Study of Drug Release Kinetics from Compressed Matrices, Indian Journal of Pharmaceutical Sciences, 60, 358-362 (1998).
14M. Gulati, M. Grover, M. Singh and Saranjit Singh, Study of Azathioprine Encapsulation into Liposomes, Journal of Microencapsulation, 15, 485 (1998).
13M.Grover, M. Gulati and Saranjit Singh, Stability-indicating Analysis of Isoxazolyl Penicillins using Dual Wavelength High-Performance Liquid Chromatography, Journal of Chromatography, 708(1-2) 153-159 (1998).
12Bhupinder Singh, Tanjinder Kaur and Saranjit Singh, Correction of Raw Dissolution Data for Loss of Drug and Volume during Sampling, Indian Journal of Pharmaceutical Sciences, 59, 196(1997).
11Saranjit Singh, Dobupride–What Exactly is Its Degradation Behaviour?  Journal of Pharmaceutical and Biomedical Analysis, 15, 1801(1997).
10Saranjit Singh, Monica Gulati and R.L. Gupta, Complexation Behaviour of Azathioprine with Metal Ions, International Journal of Pharmaceutics, 68, 105(1991).
9Saranjit Singh, Munish Kumar and R.L. Gupta, A Study on Thermodynamics of Degradation Reactions of Azathioprine in Aqueous Solutions, Indian Journal of Pharmaceutical Sciences,   51, 195 (1989).
8Saranjit Singh, R.K. Singla, Munish Kumar and R.L. Gupta, Specific Determination of Azathioprine in Solution by a Spectrophotometric Method and its Application to a Tablet   Assay, Analyst 113, 1665 (1988).
7S.K. Baveja and Saranjit Singh, Pathways of Degradation of Centbucridine in Aqueous Solutions, Indian Drugs, 25, 286 (1988).
6Saranjit Singh and R.L. Gupta, Dielectric Constant Effects on Degradation of Azathioprine in Solution, International Journal of Pharmaceutics, 46, 267(1988).
5Saranjit Singh and R.L. Gupta, A Critical Study on Degradation of Azathioprine in Aqueous Solutions, International Journal of Pharmaceutics, 42, 263 (1988).
4R.L. Gupta, Munish Kumar, R.K. Singla and Saranjit Singh, Degradative Behaviour of Azathioprine in Aqueous Solutions, Indian Journal of Pharmaceutical Sciences, 49, 169 (1987).
3S.K. Baveja and Saranjit Singh, Thin-layer Chromatographic Examination of the Degradation of Centbucridine in Aqueous Solutions, Journal of Chromatography, 396, 337 (1986).
2S.K. Baveja and Saranjit Singh, Specific Spectrophotometric Analysis of Centbucridine in Presence of Major Degradation Products, Indian Journal of Pharmaceutical Sciences, 48, 82 (1986).
1S.K. Baveja and Saranjit Singh, Substituent and Temperature Effect on pKa and pKa-Activity Relationship in the Series of 9-Alkyl Homologues of 9-Amino-1,2,3,4-tetrahydroacridine (Tacrine), Indian Journal of Pharmaceutical Sciences, 48, 23  (1986).
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