The University of Texas at Arlington

Purnendu (Sandy) K. Dasgupta

Purnendu (Sandy) K. Dasgupta

Professor
Jenkins Garrett Professor of Chemistry and Biochemistry

Office: 229 CPB, Email: dasgupta@uta.edu, Phone: 817-272-3806, FAX: 817-272-3808

Research GroupResearch ProfileCoursesPersonal Page

Current research in the Dasgupta group include:

Chip-scale instruments,
Novel detection and data transform schemes in chromatography,
Iodine nutrition of women and infants and the effects of perchlorate thereon,
Development of iodine and Selenium analyzers,
Green analysis of arsenic in drinking water,
Measurement of cyanide in saliva, blood, and breath towards rapid treatment of cyanide poisoning,
Rapid analysis of trace heavy metals in atmospheric aerosol to act as conservative tracers,
Absolute Charge detection in solution and its many ramifications.

 

The research in the Dasgupta lab is targeted towards finding the best solution to a problem and is not married to any specific technique.  Laboratory-built instrumentation are as commonly used as commercial chromatographs, mass spectrometers, etc. and are often preferred.  Students are necessarily trained in electronics and computer-interfacing and writing appropriate instrument control/data acquisition software.  We foster builders, not users.

A Simple Inexpensive Gas Phase Chemiluminescence Analyzer for Measuring Trace Levels of Arsenic in Drinking Water. Sengupta, M. K.; Hossain, Z. A.; Ohira, S.-I.; Dasgupta, P. K. Environ. Pollut. 2010, 158, 252-257. doi:10.1016/j.envpol.2009.07.014

Free Solution Hydrodynamic Separation of DNA Fragments from 75 to 106,000 Base Pairs in A Single Run. Wang, X.; Veerappan, V.; Cheng, C.; Jiang, X.; Allen, R. D.; Dasgupta, P. K.; Liu, S. J. Am. Chem. Soc. 2010, 132, 40-41. doi:10.1021/ja909233n

Charge Detector for the Measurement of Ionic Solutes. Yang, B. C.; Chen, Y. J.; Mori, M.; Ohira, S.I.; Azad, A. K.; Dasgupta, P. K.; Srinivasan, K. Anal. Chem. 2010, 82, 951-958. doi:10.1021/ac9021902

Semicontinuous Automated Measurement of Organic Carbon in Atmospheric Aerosol Samples. Lu, C.; Rashinkar, S. M.; Dasgupta, P. K. Anal. Chem. 2010, 82, 1334-1341. doi:10.1021/ac9023582

A Cold Plasma Dielectric Barrier Discharge Atomic Emission Detector for Atmospheric Mercury. Puanngam, M.; Ohira, S.-I.; Unob, F.; Wang, J. H.; Dasgupta, P. K. Talanta 2010, 81, 1109–1115. doi:10.1016/j.talanta.2010.02.005

Collection Efficiency of Annular Denuders. A Spreadsheet Calculator Based on Established Thermal Solutions. Berg, J. M., James, D. L., Berg, C. F.; Toda, K.; Dasgupta, P. K. Anal. Chim. Acta 2010, 664, 56-61. doi:10.1016/j.aca.2010.02.006

Formaldehyde and its relation to CO, PAN, and SO2 in the Houston-Galveston airshed. Rappenglück, B.; Dasgupta, P. K.; Leuchner, M.; Li, Q-Y.; Luke, W. Atmos. Chem. Phys. 2010, 10, 2413-2424. doi:10.5194/acp-10-2413-2010

Temperature Dependence of Henry’s Law Constant for Hydrogen Cyanide. Generation of Trace Standard Gaseous Hydrogen Cyanide. Ma, J.; Dasgupta, P. K.; Blackledge, W.; Boss, G. R. Environ. Sci. Technol. 2010, 44, 3028-3034. doi:10.1021/es1001192

Variations and sources of ambient formaldehyde in Beijing in the summer of 2008. Li, Y.; Shao, M.; Lu, S.; Chang, C.-C.; Dasgupta, P. K. Atmos. Environ. 2010, 44, 2632-2639. doi:10.1016/j.atmosenv.2010.03.045

A Green Analyzer for Arsenic. Electrochemical Reduction of Arsenate to Arsine and Gas Phase Chemiluminescence with Ozone. Sengupta, M. K.; Sawalha, M. F.; Ohira, S.-I.; Idowu, A. D.; Dasgupta, P. K. Accelerated Article, Anal. Chem. 2010, 82, 3467-3473. doi:10.1021/ac100604y

Electrodialytic Reagent Introduction in Flow Systems. Mishra, S. K.; Dasgupta, P. K. Anal. Chem. 2010, 82, 3981-3984. doi:10.1021/ac100882a

Measurement of Nitrophenols in Rain and Air by Two-dimensional Liquid Chromatography – Chemically Active Liquid Core Waveguide Spectrometry. Ganranoo, L.; Mishra, S. K.; Azad, A. K. Shigihara, A.; Dasgupta, P. K. Breitbach, Z. S.; Armstrong, D. W.; Grudpan, K. Rappenglueck, B. Anal. Chem. 2010, 82, 5838–5843. doi:10.1021/ac101015y

Recent developments in cyanide detection: A review. Ma, J.; Dasgupta, P. K. Anal. Chim. Acta 2010, 673, 117-125. doi:10.1016/j.aca.2010.05.042.

Cobinamide-based Cyanide Analysis by Multiwavelength Spectrometry in a Liquid Core Waveguide. Ma, J.; Dasgupta, P. K; Blackledge, W.; Boss, G. R. Anal. Chem. 2010, 82, 6244-6250. doi:10.1021/ac101158d

Application of power functions to chromatographic data for the enhancement of signal to noise ratios and separation resolution Shalliker, R. A. Stevenson, P. G.; Shock, D.; Mnatsakanyana, M.; Dasgupta, P.K.; Guiochon, G. J. Chromatogr A. 2010, 1217, 5693-5699. doi:10.1016/j.chroma.2010.07.007

Miniature Open Channel Scrubbers for Gas Collection. Toda, K.; Koga, T.; Tanaka, T.; Ohira, S.-I.; Berg, J. M.; Dasgupta, P. K. Talanta, 2010, 82, 1870-1875. doi:10.1016/j.talanta.2010.08.001

Black Box Linearization for Greater Linear Dynamic Range. The Effect of Power Transforms on the Representation of Data. Dasgupta, P. K.; Chen, Y.; Serrano, C. A.; Guiochon, G.; Liu, H.; Fairchild, J. N.; Shaliker, R. A. Anal. Chem. 2010, 82, 10,143-10,150. doi: 10.1021/ac102242t

Doped Soap Membranes Selectively Permeate a Chiral Isomer. Kanyanee, T.; Jakmunee,J.; Grudpan, K.; Dasgupta, P. K. J. Am. Chem. Soc. 2010 132, 18045–18047. doi:10.1021/ja109461r

Thiolated Eggshell Membranes Sorb and Speciate Inorganic Selenium. Yang, T.; Chen, M/-L.; Hu, X. W.; Wang, Z.-W.; Wang, J. H.; Dasgupta; P. K. Analyst, 2011, 136, 83-89. doi:10.1039/C0AN00480D

On-line Electrodialytic Salt Removal in Electrospray Ionization Mass Spectrometry of Proteins. Chen, Y.; Mori, M.; Pastusek, A. C.; Schug, K. A.; Dasgupta, P. K. .Anal. Chem. 2011, 83, 1015-1021. doi: 10.1021/ac102809c

Rapid Nondestructive Spectrometric Measurement of Temperature-Dependent Gas-Liquid Solubility Equilibria. Ma, J.; Dasgupta, P. K.; Yang, B. C. Anal. Chem. 2011, 83, 1157-1161. doi:10.1021/ac102947j

Controlled Porosity Monolithic Material as Permselective Ion Exchange Membranes. Huang, X. and Dasgupta, P. K. Featured Article, Anal. Chim. Acta 2011, 689, 155-159.doi:10.1016/j.aca.2011.01.020

Flow Batteries for Microfluidic Networks – Configuring An Electroosmotic Pump for Non-Terminal Positions. He, C.; Lu, J. J.; Jia, Z.; Wang, W.; Wang, X.; Dasgupta, P. K. Liu, S. Anal. Chem. 2011, 83, 2430–2433. doi:10.1021/ac200156s

Rapid Point of Care Analyzer for the Measurement of Cyanide in Blood. Ma, J.; Ohira, S.-I.; Mishra, S. K.; Puanngam, M.; Dasgupta, P. K.; Mahon, S. B.; Brenner, M.; Blackledge, W.; Boss, G. R. Anal. Chem. 2011, 83, 4319-24. doi:10.1021/ac200768t

Analytical Methods for the Quantification of Iodine in Complex Matrices: A Review. Shelor, C. P.; Dasgupta, P. K. Anal. Chim. Acta 2011, 702, 16-36. doi:10.1016/j.aca.2011.05.039

Power Transforms and Anomalies in Evaporative Light Scattering Detection. Shock, D.; Dennis, G. R.; Guiochon, G.; Dasgupta, P. K.; Shalliker, R. A. Anal. Chim. Acta 2011, 703, 245-249. doi:10.1016/j.aca.2011.06.060.

Fenton Digestion of Milk for Iodinalysis. Shelor, C. P.; Campbell, C. A.; Kroll, M.; Dasgupta, P. K.; Smith, T. L.; Abdalla, A.; Hamilton, M.; Muhammad, T. W. Anal. Chem. 2011, 83, 8300-8307. doi:10.1021/ac202165e

Multilayer Chitosan-based Open Tubular Capillary Anion Exchange Column with Integrated Monolithic Capillary Suppressor. Huang, X.; Foss, F. W.; Dasgupta, P. K. Anal. Chim. Acta 2011, 707, 210-217. doi: 10.1016/j.aca.2011.09.028

Expanding the Linear Dynamic Range for Multiple Reaction Monitoring in Quantitative Liquid Chromatography-Tandem Mass Spectrometry Utilizing Natural Isotopologue Transitions. Liu, H.; Lam, L.; Dasgupta, P. K. Talanta 2011, 87, 307-310. doi:10.1016/j.talanta.2011.09.063.

Oxidation State Differentiated Measurement of Aqueous Inorganic Arsenic by Continuous Flow Electrochemical Arsine Generation Coupled to Gas-Phase Chemiluminescence Detection. Sengupta, M. K.; Dasgupta, P. K. Anal. Chem. 2011, in press.

Confeito-like Assembly of Organosilicate-caged Fluorophores: Ultrabright Suprananoparticles for Fluorescence Imaging. Bok, S.; Korampally, V.; Polo-Parada, L.; Mamidi, V.; Baker, G. A.; Gangopadhyay, K.; Folk, W. R.; Dasgupta, P. K.; Gangopadhyay, S. 2011, In press

Electrodialytic Membrane Suppressors for Ion Chromatography Make Programmable Buffer Generators. Chen, Y.; Srinivasan, K.; Dasgupta, P. K. Anal. Chem. 2011, in press.

pH and Concentration Programmable Electrodialytic Buffer Generator. Chen, Y.; Edwards, B. L.; Dasgupta, P. K.; Srinivasan, K. Anal. Chem. 2011, in press.

Oxidation state differentiated measurement of aqueous inorganic arsenic by continuous flow electrochemical arsine generation coupled to gas-phase chemiluminescence detection. Sengupta, M. K.; Dasgupta, P. K. Anal. Chem. 2011, 83, 9378-9383. doi:10.1021/ac201972m

Expanding the linear dynamic range for multiple reaction monitoring in quantitative liquid chromatography-tandem mass spectrometry utilizing natural isotopologue transitions. Liu, H.; Lam, L.; Dasgupta, P. K. Talanta 2011, 87, 307-310. doi:10.1016/j.talanta.2011.09.063.

Multilayer chitosan-based open tubular capillary anion exchange column with integrated monolithic capillary suppressor. Huang, X.; Foss, F. W.; Dasgupta, P. K. Anal. Chim. Acta 2011, 707, 210-217. doi: 10.1016/j.aca.2011.09.028

Fenton digestion of milk for iodinalysis. Shelor, C. P.; Campbell, C. A.; Kroll, M.; Dasgupta, P. K.; Smith, T. L.; Abdalla, A.; Hamilton, M.; Muhammad, T. W. Anal. Chem. 2011, 83, 8300-8307. doi:10.1021/ac202165e

Power transforms and anomalies in evaporative light scattering detection. Shock, D.; Dennis, G. R.; Guiochon, G.; Dasgupta, P. K.; Shalliker, R. A. Anal. Chim. Acta 2011, 703, 245-249.doi:10.1016/j.aca.2011.06.060.

Review of analytical methods for the quantification of iodine in complex matrices. Shelor, C. P.; Dasgupta, P. K. Anal. Chim. Acta 2011, 702, 16-36. doi:10.1016/j.aca.2011.05.039

Rapid point of care analyzer for the measurement of cyanide in blood. Ma, J.; Ohira, S.-I.; Mishra, S. K.; Puanngam, M.; Dasgupta, P. K.; Mahon, S. B.; Brenner, M.; Blackledge, W.; Boss, G. R. Anal. Chem. 2011, 83, 4319-24. doi:10.1021/ac200768t

Flow batteries for microfluidic networks – configuring an electroosmotic pump for non-terminal positions. He, C.; Lu, J. J.; Jia, Z.; Wang, W.; Wang, X.; Dasgupta, P. K. Liu, S. Anal. Chem. 2011, 83, 2430–2433. doi:10.1021/ac200156s

Controlled porosity monolithic material as permselective ion exchange membranes. Huang, X. and Dasgupta, P. K. Featured Article, Anal. Chim. Acta 2011, 689, 155-159.doi:10.1016/j.aca.2011.01.020

Rapid nondestructive spectrometric measurement of temperature-dependent gas-liquid solubility equilibria. Ma, J.; Dasgupta, P. K.; Yang, B. C. Anal. Chem. 2011, 83, 1157-1161. doi:10.1021/ac102947j Correction: 2012, 84, 5446.

On-line electrodialytic salt removal in electrospray ionization mass spectrometry of proteins. Chen, Y.; Mori, M.; Pastusek, A. C.; Schug, K. A.; Dasgupta, P. K. .Anal. Chem. 2011, 83, 1015-1021. doi: 10.1021/ac102809c

Thiolated eggshell membranes sorb and speciate inorganic selenium. Yang, T.; Chen, M/-L.; Hu, X. W.; Wang, Z.-W.; Wang, J. H.; Dasgupta; P. K. Analyst, 2011, 136, 83-89. doi:10.1039/C0AN00480D

Membrane Based Concentrators. US Patent 7,964,411 21 June, 2011.

Electrodialytic ion isolation for matrix removal. Ohira, S.I.; Kuhara, K.; Kudo, M.; Kodama, Y.; Dasgupta, P. K.; Toda, K. Anal. Chem. 2012, 84,5421-5426. doi: 10.1021/ac300982k

Cobinamide chemistries for colorimetric cyanide measurement. A merging zone liquid core waveguide cyanide analyzer using cyanoaquacobinamide. Ma, J.; Dasgupta, P. K.; Zelder, F. H.; Boss, G. R. Anal. Chim. Acta 2012, 736, 78-84. doi:10.1016/j.aca.2012.05.028

Breastfed infants metabolize perchlorate. Shelor, C. P.; Kirk, A. B.; Dasgupta, P. K.; Kroll, M.; Campbell, C. A., Choudhary, P. K. Environ. Sci. Technol. 2012, 46, 5151-5159.doi:10.1021/es2042806

Confeito-like assembly of organosilicate-caged fluorophores: ultrabright suprananoparticles for fluorescence imaging, Bok, S.; Korampally, V.; Polo-Parada, L., Mamidi, V.; Baker, G. A.; Folk, W.; Gangopadhyay, K., Folk, W. R.; Dasgupta, P. K.; Gangopadhyay, S. Nanotechnology, 2012, 23, 175601 doi:10.1088/0957-4484/23/17/175601 .

Perchlorate, iodine supplements, iodized salt and breast milk iodine content. Kirk, A. B., Kroll, M.; Dyke, J. V.; Ohira, S.-I. Dias, R. A.; Dasgupta, P. K. Sci. Tot. Environ. 2012, 420, 73-78. doi:10.1016/j.scitotenv.2012.01.045.

Iron(III) modification of bacillus subtilis membranes provides record sorption capacity for arsenic and endows unusual selectivity for As(V). Yang, T.; Chen, M. L.; Liu, L.-H.; Wang, J. H.; Dasgupta, P. K. Environ. Sci. Technol. 2012, 46, 2251-2256. doi 10.1021/es204034z.

pH and concentration programmable electrodialytic buffer generator. Chen, Y.; Edwards, B. L.; Dasgupta, P. K.; Srinivasan, K. Anal. Chem. 2012, 84, 59-66. doi:10.1021/ac2023734

Electrodialytic membrane suppressors for ion chromatography make programmable buffer generators. Chen, Y.; Srinivasan, K.; Dasgupta, P. K. Anal. Chem. 2012, 84, 67-75. doi:10.1021/ac2023712

Characterization of a constant current charge detector. Mori, M.; Chen, Y.; Ohira, S.-I., Dasgupta. P. K. Talanta (in press)

Dual stage preconcentration of trace aqueous mercury for cold vapor atomic absorption spectrometry. Puanngam, M.; Dasgupta, P. K.; Unob, F. Talanta (in press) doi:10.1016/j.talanta.2012.05.055

B.Sc. University of Burdwan, WB, India (1968)

M.S. in Inorganic chemistry, University of Burdwan, WB, India (1970)

Ph.D. in Analytical Chemistry with minors in Inorganic Chemistry and Electrical Engineering, Louisiana State University (1977)

Paul Whitfield Horn Professor, Texas Tech University (1992-2006)

Purnendu K. (Sandy) Dasgupta is a native of India and was educated in a college founded by Irish missionaries where he got his bachelor’s degree with honors in Chemistry and was recognized as a National Science talent Search Scholar. During his M.Sc. in Inorganic Chemistry from the University of Burdwan, he was selected as an Atomic Energy Commission of India Graduate Fellow and worked for a year as research scholar at the Department of Physical Chemistry at the Indian Association for Cultivation of Science, the same laboratories once graced by Raman. His education and experience continued to be varied. He came to Louisiana State University at Baton Rouge as a graduate student in early 1973 and began studies in electrochemistry. He switched to research on environmental analysis under Professor Philip W West and received his PhD in 1977 in analytical chemistry with a minor in electrical engineering. Meanwhile he also received a diploma as a TV mechanic. He worked for a year as a researcher and instructor at LSU following his PhD and then joined the University of California at Davis as an Aerosol Research Chemist at the California Primate Research Center, doing studies on air pollution toxicology while teaching air and water chemistry as an Adjunct Assistant Professor in Department of Civil and Environmental Engineering. In 1981 he joined Texas Tech and named a Horn Professor in 1992, named after the first president of the University, the youngest person to be so honored at the time. He remained at Texas Tech for 25 years, joining the University of Texas at Arlington in 2007 as the Chair and Jenkins Garrett Professor.

He has authored more than 350 papers in addition to book chapters, etc. and holds 20 US patents, including one on electrodialytic reagent generation technology on which current ion chromatography is based. His recognitions include the Dow Chemical Company Traylor Creativity Award, the Ion Chromatography Symposium Outstanding Achievement Award (once in 1989, once in 2005), the Benedetti-Pichler Memorial Award in microchemistry, Achievement Rewards for College Scientists (ARCS) Scientist of the Year Award 2004-2005, Best Science Paper of the Year Award, Environmental Science and Technology, 2005, Konferenz award, Konferenz űber Ionenanalyse, 2009 and NSF Committee of visitors Exemplar of Excellence designation in 2010 . He has been the William J. Probst Lecturer of Southern Illinois University in 2001, Royal Australian Chemistry Institute roving analytical chemistry lecturer in 2003 and Miegunyah Fellow at the University of Melbourne in in 2007, Barton-Karcher-Fetterman Lecturer at the University of Oklahoma in 2008 and the Foster Lecturer at the University at Buffalo in 2010. He is an Editor of Analytica Chimica Acta, a major international journal in analytical chemistry. His current research interests include capillary scale liquid chromatography, especially ion chromatography, novel detection and data transform schemes in chromatography, iodine nutrition of women and infants and the effects of perchlorate thereon, development of iodine analyzers, green analysis of arsenic in drinking water, measurement of cyanide in saliva, blood, and breath towards rapid treatment of cyanide poisoning and rapid analysis of trace heavy metals in atmospheric aerosol to act as conservative tracers.

The research in the Dasgupta lab is targeted towards finding the best solution to a problem and is not married to any specific technique. Laboratory-built instrumentation is as commonly used as commercial chromatographs, mass spectrometers, etc. Students are necessarily trained in electronics and computer-interfacing and writing appropriate instrument control/data acquisition software. The present flagship project in the lab is building an ion chromatography for use in Mars exploration.

1981 Frank R. Blood Award for best publication, Society of Toxicology and Pharmacology

1987 Institute Medal, Institute of Industrial Sciences, University of Tokyo

1989 P. A. Traylor Creativity Award, Analytical Sciences, Dow Chemical, Midland, MI

1989 Outstanding Achievement Award, International Ion Chromatography Symposium

1991 Barney E. Rushing, Jr. 1990 Faculty Distinguished Research Award, Texas Tech University Dads and Moms Association

1998 A. A. Benedetti-Pichler Memorial Award, American Microchemical Society

2001 Inducted Honorary Member, Korean Society for Environmental Analysis

2003 Elected IEEE Senior Member

2004-2005 ARCS Foundation, Lubbock Chapter.  Scientist of the Year

2005 Outstanding Achievement Award, International Ion Chromatography Symposium

2006 Best Science Paper of 2005, Environmental Science and Technology, Editor’s Award

2011 ACS Award in Chromatography

2012 Dal Nogare Award in Chromatography

2012 The Senate of the State of Texas. Honor Proclamation

2012 Doherty Award, DFW Section of the American Chemical Society

Department of Chemistry and Biochemistry

The University of Texas at Arlington · Arlington, Texas 76019-0065 USA

Phone: 817-272-3171 | Fax: 817-272-3808

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