BIOGRAPHY

Dr. A S Sarpal is an expert with 40 years of diverse experience in the different disciplines of Analytical Sciences of development and characterization of petroleum and related products, catalysts, polymers and biofuels (biodiesel and renewable diesel from vegetable oils, microalgae and yeast).

Present position: Head Quality Control Labs, Panipat Refinery-Petrochemical complex, Panipat, Haryana, India, w.e.f  November 2017(Employee of Optical Control System (OCS), Germany)

Presently, Dr. A S Sarpal (MSc., Ph.D Chemistry) is head of quality control labs, Optical Control System, Germany, located at Panipat refinery-Petrochemical complex, India). He is an expert with 42 years of diverse experience in the different disciplines of Analytical Sciences of development and characterization of petroleum and related products, catalysts, polymers and biofuels (vegetable oils, microalgae, yeast).Superannuated from Indian Oil Corporation as GM(R&D). He has a strong aptitude and passion in unraveling mystery in chemistry by the application of sophisticated analytical techniques such as NMR, IR, chromatograph, X-Ray(XRD & XRF), Electron spectroscopy(TEM, SEM, ESCA) and metal analyses (ICAP, ICP-MS, AAS).He has developed new 50 analytical methods, written 200 internal technical reports and published 142 research papers in the reputed journals and conference proceedings. He has also worked at University of Illinois in 2011on a project biofuels from microalgaes. Completed research project on study of biodiesel potential of microalgae, yeast, and vegetable oils at INMTRO, Rio de Janeiro, Brazil from 2012 to 2015.

PUBLICATIONS

Total 142 (96 in the peer review Journals, and 46 in the proceedings
of conferences).

1. Investigating the potential of ion mobility-mass spectrometry for microalgae biomass characterization. Maíra Fasciotti, Gustavo H. M. F. Souza, Giuseppe Astarita, Ingrid C. R. Costa, Thays. V. C. Monteiro, Claudia M. L. L. Teixeira, Marcos N. Eberlin, Amarijt S. Sarpal.  Analytical Chemistry, communicated, 12th May, 2019.
2. Evaluation of low cost medium for the production of lipids for biodiesel and carotenoids from microalgae Tetraselmis aff chui. A. S. Sarpal, Claudia M. L. L. Teixeira, Ingrid C. R. Costa, Carla L. Ferreira, Paulo R. M. Silva_,  Valnei S. Cunha, Romeu J. Darod. World Jounal of Aquaculture Research and Development, Communicated, 21st May 2019.
3. Biodiesel and Polyunsaturated fatty acid (PUFA) potential of Microalgae biomass-a short review. A.S. Sarpal, Claudia MLL Teixeira, Paulo RM Silva, Valnei S. Cunha. Res Dev Material Sci. 2019, 10(4), 1-12. RDMS.000744.2019. DOI: 10.31031/RDMS.000744.2019.
4. Biodiesel and product potential of microalgae Dunaliella Salina by NMR Techniques. A. S. Sarpal, Claudia MLL Teixeira, Sabrina Mesquita, Ingrid CR Costa, Paulo RMS. Adv Biotech & Micro. 2018; 11(3): 555812. DOI: 10.19080/AIBM.2018.11.555812.
5. Compositional analyses of oil extracts of microalgae biomasses by NMR and Chromatographic techniqes. A. S. Sarpal, B. K. Sharma, John Scott, Ravinder Kumar,Vatsala Sugmaran, Anju Chopra, Veena Bansal, Nand Kishore Rajagopalan. J. Anal. Bioanal. Sep. Tech.  2016, 1(1), 1-25.
6. Monitoring of Development of Certified Reference Material of Biodiesel by High Field NMR Spectroscopic Techniques. A. S. Sarpal, Paulo R. M.Silva, Thays V. Monteiro, Mauricio Fonseca, Valnei S. Cunha and Romeo J. Daroda, J. Scientific and Industrial Metrology, 2016, 1(3:12):1-25.
7. Investigation of Biodiesel Potential of Biomasses of Microalgaes Chlorella, Spirulina and Tetraselmis by NMR and GC-MS Techniques. A. S. Sarpal, Ingrid C. R. Costa, Claudia M. L. L. Teixeira, Diego Filocomo, Renata Candido, Paulo R. M. Silva_,  Valnei S. Cunha, Romeu J. Daroda. J Biotechnol Biomater ISSN: 2155-952X, JBTBM, 6:1, 1-15, 2016. doi:10.4172/2155-952X.1000220.
8. NMR techniques for determination of lipid content in microalgal biomass and their use in monitoring cultivation for biodiesel potential. A S. Sarpal, Cláudia M. L. L. Teixeira, Paulo Roque Martins Silva, Thays Vieira da Costa Monteiro, Júlia Itacolomy da Silva, Valnei Smarcaro da Cunha, Romeu Jose Daroda., Applied Microbiology and Biotechnology, 2015 100(5): 2471-2485 DOI:10.​1007/​s00253-015-7140-x.
9. Determination of Lipid content of oleaginous Microalgae biomass by NMR  Spectroscopic. A. S. Sarpal, Claudia M. L. L. Teixeira, Paulo R. M. Silva_, Gustavo M Lima, Samantha R. Silva, Thays V Monteiro, Valnei S. Cunha, Romeu J. Daroda. Jr. Analytical and Bioanalytical Chemistry. 2015, 407(13), 3799-3816. 
10.  Compositional Analysis of Algal Biomass in a Nuclear Magnetic Resonance (NMR) Tube. R. Kumar, V. Bansal, M.B. Patel, A.S. Sarpal. JABU, 2014, 5(3), 36-45. 
11. A Direct Method for the Determination of Iodine Value of Biodiesel by Quantitative Nuclear Magnetic Resonance (q¹H-NMR) Spectroscopy. A. S. Sarpal, Samantha R. Silva, Paulo R. M. Silva, Thays V. Monteiro, Júlia  Itacolomy,Valnei S. Cunha and Romeu J. Daroda. Energy Fuels 2015  29 (12): 7956–7968
12. Biodiesel potential of oleaginous Yeast biomass by NMR Spectroscopic Techniques. A. S. Sarpal, Paulo R. M. Silva, Juliana L. Martins, Julio J. Amaral, Marianne M. Monnerat, Valnei S. Cunha, Romeu J. Daroda and Wanderley de Souza. Energy Fuels, DOI: 10.1021/ef402516x. Energy Fuel, 2014, 28, 3766-3777. 
13.  Biodiesel   Potential and quality aspects of vegetable oils and algae biomass.  A. S. Sarpal, Samantha R. Silva, Thays V. Monteiro, Werickson F. Rocha, Paulo R. M. Silva, Valnei S. Cunha  and  Romeu J. Daroda. Proceedings of World Bioenergy-2014 conference, June3-5, 2014, Jonkoping,  Sweden.
14.   Monitoring of Biodiesel Quality Parameters by 1HNMR Spectroscopic Techniques. A.S. Sarpal, Paulo R Silva, Valnei S. Cunha, and Romeu J. Daroda, STLE Letters, October 01, 2013(Online article).
15. Analytical Strategies for determining of Biodiesel potential of Algae, A.S.Sarpal and  Paulo R Silva,  STLE Letters, March 13, 2013(Online article).
16. Compartive study of sulfur compounds in fuel range fractions of different crude oils by GC-SCD, Dheer singh, Anju Chopra, Mitra Bhanu, Amarjit Singh Sarpal, Accepted, JASMI, May, 2012 .
17.   A Comparative Evaluation of Nitrogen Compounds in Petroleum Distillates. Dheer Singh, Anju Chopra, Mitra Bhanu Patel, Amarjit Singh Sarpal.  Chromatographia  08/2013; 74(1-2). DOI:10.1007/s10337-011-2027-1
18. Transferable hydrogen by 1H nuclear magnetic resonance spectroscopy – Vital structural aspects of petroleum heavier ends (370–660 °C) feed stocks. Veena Bansal, Ravindra Kumar, G.J. Krishna, M.B. Patel, A.S. Sarpal, B. Basu.  Fuel 01/2014; 118:148–155. ¹H Nuclear Magnetic Resonance (NMR) Determination of the Iodine Value in Biodiesel Produced from Algal and Vegetable Oils, Ravindra Kumar, Veena Bansal, M. B. Patel, and A. S. Sarpal, Energy Fuels, 2012, 26, 7005−7008.
19. Correlation of structure and property of Group I to 111 Base Oils.  A S. Sarpal, M. I. S. Sastry, V. Bansal, Inder Singh, S.K. Mazumdar and B. Basu. Lubrication Science 2012; 24: 199–215
20. ICAP and ICP-MS Techniques for Metal Extraction Efficiency of Algae by Various Solvents.  A. S. Sarpal, Saeed Ahmed, B. K. Sharma, G. J. Krishna, and Nandakishore Rajagopal, Proceedings of  14^th ISMAS WS, India, 2011
21. Estimation of Total fat content, free fatty acid in oil extracted from seed for biodiesel production by NMR Spectroscopic techniques. R.Kumar, V. Bansal, A.K.Tiwari, M.Sharma, S.K.Puri, M.B.Patel and   A.S. Sarpal.  JAOCS, 88, 1675-85(2011).
22. Determination of Polyunsaturated Fatty Esters (PUFE) in biodiesel by GC/GC-MS and NMR techniques. Anju Chopra, Dheer Singh, Ravinder Kumar, V.Sugmaran A. S.Sarpal.  JAOCS, 88, 1285-96 (2011).   
23. Molecular Dynamics of Synthetic Based Lubricant System by Spectroscopic Techniques - Part 1, A. S. Sarpal, M. I. S. Sastry, Ravindra Kumar, Sanker Bhadhavath, Kavita Rai, V. Bansal and M. B. Patel,  Tribology Transactions, 56:3, 442-452, 2012                                                                                                     
24. Analytical challenges for monitoring Biodiesel Quality.  Anju Chopra, Ravinder kumar, Veena Bansal, M. B Patel and A. S Sarpal.  Petrofed, Jan-March, 8(1), 34-39, 2010.
25. Prediction of Bio-Hydrogen Production from Organic Waste Based on   Process Generated VFAs - A Gas Chromatography Approach. Dheer Singh, Anju Chopra, Manoj Upreti, M.P.Singh, W.R. Kalsi and A.S. Sarpal –Dew Journal, March (2010).
26. Direct determination of ultra Trace level As & Hg in hydrocracker feed stocks by ICP-MS. G. Jaya Krishna, S. Ahmed, V. Kagdayal, M. B. Patel and A.S. Sarpal.  Atomic spectrometry (communicated)  
27.  Characterization of Metal Phthalocyanine Catalysts Using Field Desorption Mass Spectrometry.  V. Sugmaran, V. Kagdiyal and  A.S.Sarpal  Petroleum science and technology,  30:3, 278-289  (2012).
28. Quality Control Aspects: A Simple Method for Estimation of Ethyl Alcohol in Oxy Diesel by NMR Spectroscopy.    Veena Bansal, K.K.Swami, Ravindra Kumar and A.S.Sarpal, Petroleum Science and Technology, 31:8, 819-828, 2013.
29. Determination of Fatty Acid Based Lubricity Improver in Diesel by Gas Chromatography, Anju Chopra, Dheer Singh, W. R. Kalsi, S. Sugumaran, A. S. Sarpal and B. Basu.  “Chromatographia”, 2009, 70(7), 1143.
30. Trace Metal analyses in petroleum Refinery feed stocks by ICP Mass Techniques.  A. S. Sarpal, S, Ahemd , and M. B Patel,  13th ISMAS-WS 2008, 59-71, 2008.
31. G. Jaya Krishna, S. Ahmed, V. Kagdayal, M. B. Patel and A.S. Sarpal, Determination of Ultra Trace Level Metals in the Refinery Feed stocks of Naphtha & Vacuum Gas Oil by ICPMS (11^th ISMAS- TRICON- 2009), 2009,  202
32. Determination of Hydrocarbons Types and oxygenates in Motor  Gasoline: A Comparative Study by different Analytical Techniques .V.  Bansal, G.J.Krishna, A.P Singh, A.K.Gupta and A.S.Sarpal.  Energy Fuels, 22 (1), 2008, 410-415.
33. Detailed Hydrocarbon Characterization of RFCC feed Stocks by NMR Spectroscopic techniques, V.Bansal, G.J. Krishna and A.S.Sarpal,  Energy & Fuels .2007, 21, 1024-1029.
34. Estimation of aromatics in VGO (370+) range by 1H NMR Spectroscopy. G.S. Kapur, Anju Chopra and A.S. Sarpal ,Energy and Fuel, 19, 1065-71 (2005).
35. Estimation of Biodiesel in Diesel Samples by Mid-IR  Spectroscopy Technique S. Mukherjee, M. I. S. Sastry, Ravinder Kumar and   A. S. Sarpal, SAE India,  2004-28-064.      
36.  A.S. Sarpal, J. Christopher, S. Mukherjee, M.B. Patel and G.S. Kapur, “Study of Additive Interaction in a Lubricant System by NMR, TGA and ESCA Techniques”, Lubrication Science, 17-3, 319 (2005)
37. S. Mukherjee, G.S. Kapur, Anju Chopra and A.S. Sarpal, “1H NMR spectroscopic-Based Method for the Estimation of Total Aromatic Content of Aviation Turbine Fuels (ATF): Comparison with Liquid Chromatographic Methods, Energy & fuels, 2004, 18_30-36.
38. V. Bansal, S. Vatsala, G.S. Kapur, B. Basu and A.S. Sarpal, “Hydrocarbon type analysis of middle distillates by Mass spectrometry and NMR spectroscopy techniques –a comparison” Energy & Fuels 2004, 18, 1550.
39. V. Bansal, M.B. Patel and A.S. Sarpal, “Structural aspects of crude oil derived asphaltenes by NMR , XRD and spectroscopic techniques” Petroleum Science & Technology, Vol-22 (11 & 12), 1401-1426 (2004)
40. G.S. Kapur, M.I.S. Sastry, A.K. Jaiswal and A.S. Sarpal,   “Establishing Structure-Property Correlations and Classification of Base Oils using Statistical Techniques and Artificial Neural Networks”, Anal Chim Acta, 506 (2004)-57-69.
41. A.S. Sarpal, MIS Sastri, G.S. Kapur, V. Bansal, A.K. Mehta and A.K. Bhatnagar, “Molecular dynamics studies of lubricant system by NMR”, Lubrication Science, 16-4, 361-375 (2004)
42. Biodiesel From Jatropha curcas and Pongamia Pinnata. Kumar, R., Sharma, M., Ray, S., Sarpal, A. et al SAE Technical Paper 2004-28-0087,2004, doi:10.4271/2004-28-0087.        
43. Estimation of Oil Content in Biodiesel- Diesel Blends by IR  Spectroscopy -Application of PLS Technique S. Mukherjee, M. I. S. Sastry,   A. K. Gupta and A. S. Sarpal, SAE India-2006-28-0044
44. S. Mukherjee, Mary Joseph, MIS. Sastry and A.S. Sarpal, “Molecular Spectroscopic Studies of Additive-Additive Interaction of ZDDP-MODTC-PIBS, Dec. 2004. Lubrication Science,
45. B. Basu, G. S. Kapur, A. S. Sarpal and R. Meusinger,  “A Neural Network Approach to the Prediction of Cetane Number of Diesel Fuels Using Nuclear Magnetic Resonance (NMR) Spectroscopy”, Energy & Fuels, 2003,
46. A.P. Singh, S. Mukherjee, A.K. Tiwari, W.R. Kalsi, A.S. Sarpal, B. Basu, A.K. Mehta and A.K. Bhatnagar, “ Determination of Benzene and Total Aromatic content in Commercial Gasoline using Packed Column GC., Fuel 82, 23 (2003).
47. V. Bansal, A. Chopra, MIS Sastry, V. Kagdiyal, and A.S. Sarpal “ Detailed characterization of Sulphur and Nitrogen Components in a multifunctional ashless lubricant additive by spectroscopic and chromatographic techniques”, Tribo test, 9-4, 317 (2003).
48.  A.S. Sarpal, S. Mukherjee, R. Sarin, A.K. Mehta and A.K. Bhatnagar, “NMR studies of interaction of zinc phosphorodithioate and ashless phosphorodithioate”, Lubrication Engineering, 58(5), 28-32 (2002).
49. Kapur, G.S, Sarpal, A.S. and Bhatnagar, A.K, Temperature Dependent Effects in base Oils- Carbon-13 NMR and Viscometric Studies. Lubrication Science,  14(3), 287,2002.
50. M.C. Jain, S.Vatsala, K. Vivekanandan and A.S. Sarpal, “Specific application of mass spectrometry in the analysis of petroleum.   Proceedings of advance mass spectrometry (10^th ISMAS-WS-2002), Puri (Orrisa), India, Feb.2002.
51.  A.P. Singh, W.R. Kalsi, A.K. Tiwari, S.K. Puri, B. Basu and A.S. Sarpal. “Monitoring of trace levels of p-dioxane in high purity benzene feed stock by capillary gas chromatography”, Chromatographia, 54 (7/8), 537, 2001.
52. M.I. S Sastry, G.S. Kapur, V. Bansal, A.K. Mehta, A.K. Bhatnagar and A.S. Sarpal,  “Molecular dynamics studies of lubricant system by NMR”, Lubrication Science, 16-4, 362 – 375, 2004.
53. Sarpal, A.S., V. Bansal, MIS Sastry, S. Mukherjee & Kapur, G.S., (2003),  “Molecular Spectroscopic Studies on Effect of Base Oils on the Additive-Additive Interactions”, Lubrication Science, 2003, (16) 29-45.
54. S. Mukherjee, G.S. Kapur, M.I.S. Sastry, A.K. Tewari, A.K. Gupta and A.S. Sarpal, “Investigation and correlation of various analytical techniques for benzene estimation in gasoline range samples”,  Drilling & Exploration World, Vol. 12 (6), 37-42, 2003.
55. V. Bansal, K.C. Dohen, R. Sarin and A.S. Sarpal, “Sulphur phosphorus components in gear oil-part-I. Oxidation stability studies by 31P NMR spectroscopic techniques”, Tribology international, 35, 819 (2002).
56. A.S. Sarpal, G.S. Kapur, S. Mukherjee and A.K. Tiwari, “PONA analysis of cracked gasoline by 1HNMR spectroscopy. Part II” Fuel, 80, 521-528 (2001)
57. MIS Sastry, S. Mukherjee and A.S. Sarpal, “Molecular dynamics studies of lubricant related system – VTIR spectroscopic studies”, Fuel, 79, 1833-1841, 2000.
58. SSV. Ramakumar, V. Kagdiyal, A.K. Tiwari, A. Chopra, A.M. Rao and A.S. Sarpal, “Degradation pattern of polymeric viscosity index improver in cross graded engine lubricant. SAE paper 28-0038, 2001.
59. Sarpal, A.S., Kapur, G.S., Mukherjee, S. and Tiwari, A.K.,  “PONA analysis of cracked gasolines by 1H-NMR spectroscopy-Part-II”, Fuel, 80(4), 521-528 (2001)
60. Sarpal, A.S. S. Mukherjee, Bansal, V., Singh, A.P. and Kapur, G.S. (2001), Determination of normal and iso-paraffinic content in middle distillate fuels by NMR spectroscopy-Part-II, Fuels International, 1 (2), 107-123.
61. Sarpal, A.S. S. Mukherjee, Bansal, V. and Kapur, G.S. (2000), NMR Identification of Hydrocarbon Types in Fuels. Part1. Multipulse NMR and Hydrocracked/Conventional Fuels, Fuels International,  1-1, 3-15.
62. Bansal, V., Kapur, G. S., Sharma, V.K. and  Sarpal, A.S. “Estimation of Bromine number of Petroleum distillates by NMR spectroscopy”,  Energy  & Fuels, 14,  1028-31 (2000),
63. G.S. Kapur, A.P. Singh, A.S. Sarpal, “Determination of aromatics and naphthenes in straight run gasoline by 1H-NMR spectroscopy. Part I, Fuel, 79 (9) 1023-29. (2000)
64. R. Sarin, D.K. Tuli, A.S. Sarpal and A.K. Bhatnagar, “Phosphorous & Sulfur components in the gear oil compositions: A chemistry perspective”,  Greasetech,  India, 2000.
65. Kapur G.S, Sarpal, A.S., Jain, S.K., Srivastava, S.P. and Bhatnagar, A.K. “Detailed Characterization of Heavy Alkylated Benzene Fluids by One- and Two-Dimensional NMR Spectroscopy, J. Syn. Lubrication. 17 (1), 41-54 (2000).
66. V. Bansal, G.S. Kapur, A.S. Sarpal, V. Kagdiyal, S.K Jain and S.P. Srivastava, “ Estimation of polynucelar aromatics in diesel range products by 2D NMR spectroscopy”, Energy and Fuel, 16 (7-8), 851, 1998.
67. MIS Sastry, A. Chopra, A.S. Sarpal, S.K. Jain, S.P. Srivastava and A.K. Bhatnagar, “ Determination of physico-chemical properties and carbon type analysis of base oils using mid-IR spectroscopy and partial least squares regression analysis”, Energy & Fuels, 12, 304-311, 1998.
68. Kapur, G.S., Chopra, A., Ramakumar, S.S.V., and Sarpal, A.S. Molecular spectroscopic studies of ZDDP-PIBS interactions. Lubrication Science, 10(4), 309-321 (1998)
69. Bansal, V., Kapur, G.S., Sarpal, A.S., Kagdiyal, V., Jain, S.K. and  Srivastava, S.P. Estimation of total aromatics and their distribution as mono and global di-plus aromatics in diesel range products by NMR spectroscopy. Energy & Fuel, 12, 1223-1227 (1998).
70. Kapur, G.S., Chopra, A., Sarpal, A.S., Ramakumar, S.S.V., and Jain, S.K. Studies on competitive interactions and effect of blending order of engine oil additives by IR and variable temperature 31P-NMR spectroscopy. Tribology Transactions,  42 (4), 807-812 (1999).
71. Kapur, G.S., Mukherjee, S., Sarpal, A.S. and Jain, S.K. 13C-NMR method for estimation of heavy alkylated benzene in industrial oils using stepwise multiple linear regression. Lubrication Engineering, 54 (5), 21-27 (1998)
72. Sarpal, A.S., Kapur, G.S., Bansal, V.,  Jain, S.K., Srivastava, S.P. and Bhatnagar, A.K. Estimation of aromatic carbon content of base oils by 1H-NMR spectroscopy. Petroleum Sci. & Tech. International, 16(7&8), 851-868 (1998)
73. Kapur, G.S., Sarpal, A.S., Sarin, R., Jain, S.K., Srivastava, S.P. and Bhatnagar, A.K. Detailed characterization of Polyalphaolefins (PAOs) in terms of branched structures by multipulse NMR techniques. J. Synthetic Lubrication, 15(3), 177-191 (1998)
74. V. Bansal, MIS Sastry, A.S. Sarpal, S.K. Jain, S.P. Srivastava and  A.K. Bhatnagar, “ Characterization of nitrogen and phosphorous components in a multifunctional lubricant additive by NMR and IR techniques”, Lubrication Engineering, 53 (4), 17-24, 1997.
75. MIS Sastry, A. Chopra, A.S. Sarpal, S.K. Jain, S.P. Srivastava and A.K. Bhatnagar, “Carbon type analysis of hydrogenated and conventional lube-oil base stocks by IR spectroscopy”, Fuel 75 (12), 1471-1475, 1996.
76.  W.R. Kalsi, A.S. Sarpal, S.K. Jain, S.P. Srivastava and  A.K. Bhatnagar, “Determination of  oxygenate by 1H NMR spectroscopy”, Energy & Fuels, 15, 2976, 1995.
77. S. Mukherjee, V. Bansal, A.S. Sarpal, S.K. Jain, “Direct determination of furfural in various hydrocarbon matrices by 1H-NMR spectroscopy. Research & Industry, 39, 276, 1994.
78. Sarpal, A.S., Kapur, G.S., Mukherjee, S., and Jain, S.K. Estimation of oxygenates by 13C-NMR spectroscopy. Energy & Fuel, 11, 662-667 1997)
79. Sarpal, A.S., Kapur, G.S., S. Mukherjee and Jain, S.K. Characterization by 13C-NMR spectroscopy of base oils produced through different processes. Fuel, 76(10), 931-937 (1997)
80. Christopher, J., Sarpal, A.S., Kapur, G.S., Krishna, A., Tyagi, B.R., Jain, M.C., and Bhatnagar, A.K. Chemical structure of bitumen-derived asphaltenes by NMR and XRD techniques., Fuel, 75(8), 999-1008 1996)
81. Chopra, A., Sastry, M.I.S., Kapur, G.S. and Sarpal, A.S. “Analysis of cold rolling oils by NMR and IR techniques. Lubrication Engineering, 52 (4), 279-284 (1996)
82. Kapur, G.S., Sarpal, A.S., Mazumdar, S.K., Srivastava, S.P. and Bhatnagar, A.K. Structure-performance correlations of VI improvers-Part 1 Microstructure determination of  OCP VI improvers by NMR spectroscopy. Lubrication Science, 8(1), 49-60 (1995)
83. Sarpal, A.S., Kapur, G.S., Chopra, A., Jain, S.K.,   Srivastava, S.P. and Bhatnagar, A.K. Hydrocarbon type characterization of hydrocracked base oils by two-dimensional N.M.R. spectroscopy. Fuel,  74 (4), 483-490 (1995):
84. Sarpal, A.S., Kapur, G.S., Mukherjee, S., JayParkash, K.C., and Jain, S.K. Determination of iodine value of lubricating oils by NMR spectroscopy. Lubrication. Engineering, 51(3), 209-214 (1995)
85. Sastry, M.I.S., Mukherjee, S., Kapur, G.S.,  Sarpal, A.S.,  Jain, S.K., and Srivastava, S.P. Modified method for hydrocarbon type characterization of blended base oils by infrared spectroscopy. Fuel, 74 (9), 1343-1346 (1995)
86. SSV Ramakumar and A.S. Sarpal, “Studies on additive-additive interaction”, Lubrication Science, 7-11, 1994.
87. A.S. Sarpal and NVR. Apparao, “Application of NMR spectroscopy to the characterization of straight run pet. Fraction-I, Research and Industry, 31, 64, 1986
88. A.S. Brar, A.S. Sarpal, and S.S. Sandhu, “Photochemical reduction of uranyl ion with triphenyl bismuth”, Indian J. Chem, 19A, (902), 1980.
89. A.S. Brar, A.S. Sarpal, and S.S. Sandhu, “Photochemical reduction of uranyl ion with triphenylphosphine”, Indian J. Chem, 19A, (413), 1980.
90. A.S. Brar, A.S. Sarpal, and S.S. Sandhu, “Photochemical reduction of uranyl ion with triphenyl antimony”, Indian J. Chem, 18A, 1979.
91.  A.S. Brar, A.S. Sarpal, and S.S. Sandhu, “Photochemical reduction of uranyl ion with alcohols”, Indian J. Chem, 3 (8), 1976.
92. A.S. Brar, A.S. Sarpal, and S.S. Sandhu, “Photochemical reduction of uranyl ion with triphenyl arsine”, Indian J. Chem, 16A, (587), 1978.
93. R.C. Bansal, A.S. Sarpal and T.L Dhami, “Adsorption characteristics of polyvinyl chloride carbons: PartII of Carbon-Oxygen surface complexes on the adsorption of methanol, ethanol & isopropanol, Ind. J. Chem Vol13, 1321-1323, 1975.

RESEARCH INTEREST

1. Analytical Techniques
2. NMR
3. IR
4. GC-MS
5. Petroleum
6. Biofuels
7. Microalgae
8. Polymer
9. Food Products
10. Vegetable Oils

Current Research Interest in Microalgae and Vegetable oils and Petrochemicals

1. Study of Biodiesel potential of algae and yeast biomass, and vegetable oils by Analytical Techniques.
2. Food quality and biodiesel potential of lipids from microalgae and vegetable oils
3. Monitoring of cultivation process for Lipid content and quality aspects for biodiesel and value-added products such as PUFA, Beta carotenes, etc. by NMR, FTIR, GCMS, etc.
4. Molecular structure elucidation, characterization and quality aspects of biodiesel from microalgae and vegetable oils
5. Quality aspects of vegetable oils
6. Biodiesel and PUFA  potential of microalgae biomass
7. Effect of nutrient on the yield and quality of microalgae biomass 
8. Monitoring of cultivation process for enhancement of yield efficiency and biodiesel potential meeting ASTM specification.
9. Development of new analytical methods for the study of biofuel potential of vegetable oils and biomass.
10. Screening of Microalgae strains for highly productive with enhanced biodiesel and product potential
11. Lipid content and profiling for fatty acid analysis, identification, and quantification.
12. Efficient extraction of neutral lipids by ultrasonic solvent extraction.
13. Production of certified reference materials for Microalgae
14. Quality control of petrochemicals (Polymers: PP, PE)

HONORS AND AWARDS

1. He is a recipient of National Petroleum Management for Creativity & Innovation Program - Award of excellence
2. PCRA energy conservation award for exemplary work in energy conservation, and many best paper presentation awards.
3. Awarded Wolff Kishner Research Award in Analytical Chemistry for the year 2015,
4. Award of excellence by the International Agency for Standards and Rating, USA.