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Dr. Supaporn Kradtap Hartwell, PhD

Professor, Chemistry Department

  • 513-745-3397
  • 304A Logan Hall
  • Fax: 513-745-3695
  • ML LOG-103
  • 513-745-3397
  • 304A Logan Hall
  • Fax: 513-745-3695
  • ML LOG-103

Expertise My research is in the area of green analytical chemistry. Mainly, I am interested in developing low-cost alternative chemical analysis methods/systems using safe natural extracts and easily available materials in place of toxic reagents and high cost devices. Design and development of these green chemical analysis systems involve exploration of current topics in analytical chemistry such as microfluidics and paper-based assay. Recent examples of my work include using egg white protein to detect copper, tea extract to detect iron, and a novel paper chromatography design that operates with a very low volume of organic solvent. In addition, I am interested in chemical education research and outreach projects.

  • B.S. Chiang Mai University, Thailand
  • M.S. University of Massachusetts at Amherst
  • Ph.D. University of Cincinnati
  • Green Chemistry Experiment with Intercultural Virtual Exchange at the High School Level, P. Yanu, L. Porter, K. Topp, and S. Kradtap Hartwell. Journal of Chemical Education 102 (2025) 2755-62.
  • Novel Design for Low Volume Mobile Phase Paper Chromatography, J. DeMott, Z. Hilvano, H. Cann, I. Baldwin-Zurek, W. Kershisnik, and S. Kradtap Hartwell. Green Analytical Chemistry 10 (2024) 100121.
  • Uses of Flow-Based Systems for Enzyme Kinetics, S. Kradtap Hartwell, In Some Key Topics in Chemistry and Biochemistry for Biotechnologists, Editor: Munishwa Nath Gupta, p. 1-25, CRC Press, Taylor and Francis, 2023.
  • Creating a Globally Enhanced Chemistry Course through an Intercultural Collaborative Assignment, S. Kradtap Hartwell, K. Watla-iad, Journal of Chemical Education, 99 (2022): 1068–75.
  • Miniaturized Green Analytical Method for Determination of Silver Ions Using C-Phycocyanin from Cyanobacteria as an Ecofriendly Reagent, N. Youngvises, D. Nguyen, T. Charoenrat, S. Kradtap Hartwell, J. Jakmunee, and A. AlSuhaimi, Chiang Mai J. Sci. 48 (2021): 221–30.
  • Paper Based Assay of Copper (II) Ion Using Egg White as a Natural Chromogenic Reagent. E. Whitford, W. Nzobigeza, and S. Kradtap Hartwell, Analytical Letters, 53 (2020) 2465–2480.
  • Green Analytical Chemistry Experiment: Quantitative Analysis of Iron in Supplement Tablets with Vis-spectrophotometry Using Tea Extract as a Chromogenic Agent, S. Lapanantnoppakhun, U. Tengjaroensakul, P. Mungkornasawakul, C. Puangpila, S. Kittiwachana, J. Saengtempiam, and S. Kradtap Hartwell, Journal of Chemical Education, 97 (2020) 207−214.
  • Anodic Stripping Voltammetry with a Dynamic Flow-through Sequential Extraction Method for Fractionation Study of Cadmium and Lead in Soil, A. Paukpol, S. Kradtap Hartwell, and J. Jakmunee, Soil and Sediment Contamination: An International Journal, DOI: 10.1080/15320383.2020.1761288 (2020) 1-15.
  • A Compact Multi-parameter Detection System Based on Hydrodynamic Sequential Injection for Sensitive Determination of Phosphate, Nitrite, and Nitrate in Water Samples, W. Khongpet, P. Yanu, S. Pencharee, C. Puangpila, S. Kradtap Hartwell, S. Lapanantnoppakhun, Y. Yodthongdee, A. Paukpol, and J. Jakmunee, Analytical Methods, 12 (2020) 855-864.
  • A Compact Hydrodynamic Sequential Injection System for Consecutive Online Determination of Phosphate and Ammonium, W. Khongpet, S. Pencharee, C. Puangpila, S. Kradtap Hartwell, S. Lapanantnoppakhun, and J. Jakmunee, Microchemical Journal, 147 (2019) 403–410.
  • Student-Centered Teaching Practices and Assessments to Enhance Retention: An Introduction, S. Kradtap Hartwell, T. Gupta, Chapter 1 in Enhancing Retention in Introductory Chemistry Courses Teaching Practices and Assessments, ACS Symposium Series, Vol. 1330, American Chemical Society, 2019 1-14.
  • Changing Instructor Attitudes and Behaviors to Support Student Learning and Retention, S. Kradtap Hartwell, Chapter 11 in Enhancing Retention in Introductory Chemistry Courses Teaching Practices and Assessments, ACS Symposium Series, Vol. 1330, American Chemical Society, 2019, 169-186.
  • Enhancing Student Retention in General and Organic Chemistry, T. Gupta, and S. Kradtap Hartwell, Chapter 1 in From General to Organic Chemistry Courses and Curricula to Enhance Student Retention, ACS Symposium Series, Vol. 1341, American Chemical Society, 2019, 1-12.
  • Exploiting an Automated Microfluidic Hydrodynamic Sequential Injection System for Determination of Phosphate, W. Khongpet, S. Pencharee, C. Puangpila, S. Kradtap Hartwell, S. Lapanantnoppakhun, and J. Jakmunee, Talanta, 177 (2018) 77–85.
  • Sequential Injection Ion Chromatography with Flow Injection Post Column Derivatization Capable of Using the Unstable Reagent Murexide to Determine Calcium and Magnesium in a Mixture, S. Lapanantnoppakhun, L. Ganranoo, S. Kradtap Hartwell, and K. Grudpan, Chromatographia, 81 (2018) 1269–1276.
  • Sequential Injection Chromatography with an Ultra-short Monolithic Column for the Low Pressure Separation of α-tocopherol and -oryzanol in Vegetable Oils and Nutritional Supplements, S. Thaithet, S. Kradtap Hartwell, and S. Lapanantnoppakhun, Analytical Sciences, 33 (2017) 313-319.
  • Quantitative TLC-Image Analysis of Urinary Creatinine Using Iodine Staining and RGB Values, E. Kerr, C. West, and S. Kradtap Hartwell, Journal of Chromatographic Science, 54 (2016) 639–646.
  • Simple Lab-on-chip with Light Scattering Measurement for Determination of Sweetness in Grape Juices, S. Thaithet, W. Wongwilai, S. Kradtap Hartwell, K. Grudpan, and S. Lapanantnoppakhun, Journal of Flow Injection Analysis, 32 (2015) 9-12.
  • Low Pressure Chromatographic Separation of p-Hydroxybenzoates Using Sequential Injection with Lab-on-Valve System and Miniature Monolithic Column, S. Kradtap Hartwell, A. Kehling, and S. Lapanantnoppakhun, Chromatographia, 77 (2014) 883-891.
  • Flow Injection/Sequential Injection Chromatography: A Review of Recent Developments in Low Pressure with High Performance Chemical Separation, S. Kradtap Hartwell, A. Kehling, S. Lapanantnoppakhun, and K. Grudpan, Analytical Letters, 46 (2013) 1640-1671.
  • Green Analytical Chemistry Methodology Using Indian Almond (Terminalia Catappa L.) Leaf Extract for Determination of Aluminum Ion in Waste Water from Ceramic Factories, P. Insain, S. Khonyoung, P. Suksamiti, S. Lapanantnoppakhun, J. Jakmunee, K. Grudpan, K. Zajicek, and S. Kradtap Hartwell, Analytical Sciences, 29 (2013) 655-659.
  • Exploring the Potential for Using Inexpensive Natural Reagents Extracted from Plants to Teach Chemical Analysis, S. Kradtap Hartwell, Chemistry Education Research and Practice, 13 (2012), 135-146.
  • Flow-Based Systems for Rapid and High-Precision Enzyme Kinetics Studies: A Review, S. Kradtap Hartwell, K. Grudpan, Journal of Analytical Methods in Chemistry, Article ID 450716 (2012)
  • Flow Injection/Sequential Injection Analysis Systems: Potential Use as Tools for Rapid Liver Diseases Biomarker Study, S. Kradtap Hartwell, International Journal of Hepatology, Article ID 281807 (2012)
  • 2025 Conway Faculty Fellow for Jesuit Education, Center for Mission and Identity, Xavier University
  • 2024 Xavier University Cura Studiorum Award
  • 2024 Xavier Undergraduate Research Mentor of the Year
  • 2024 Joan G. McDonald Award for Outstanding Teaching in the Sciences at Xavier
  • 2021 Academic Showcase speaker representative for College of Arts and Sciences for the Xavier President’s Inauguration Week
  • 2011 Chiang Mai University Science Award
  • 2009 Chiang Mai University Golden Elephant Award
  • 2004 Outstanding New Researcher Award from Thailand Research Fund-Commission on Higher Education
  • 1993-2000 National scholarship for study abroad from Thailand Institute for the Promotion of Teaching Science and Technology (IPST)