Analytically Speaking

Ep 45: Overfitting in Chemometrics: Designing Models That Truly Work by LCGC & Spectroscopy

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Dr. Pierre-Hugues (PH) Stefanuto who is an Associate Professor and Lead Scientist in the Molecular System Research Unit at University of Liège in Liège, Belgium. He previously received both his M.S. and Ph. D. degrees from the same institution. Following his graduate work in Liege he was a postdoctoral research fell...

Here in Episode #43, podcast host Dr. Jerry Workman speaks with Dr. Mustafa Kansiz, who is currently the Director of Product Management at Photothermal Spectroscopy Corporation in Santa Barbara, California. They will be discussing an introduction to optical photothermal infrared (O-PTIR) spectroscopy; the technique, its applications and the newest innovations in O-PTIR and even Photothermal Stimul...

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Professor Kelly Hines. Dr. Hines is an associate professor in the Department of Chemistry at the University of Georgia in Athens. She received her B.S. degree in Chemistry from the University of Florida, and then completed the Ph. D. in Chemistry at Vanderbilt University. Her doctoral studies focused on monitoring b...

Here in Episode #41, podcast host Dr. Jerry Workman speaks with Sunil Mehrotra and Doug Modlin, who are the project leaders of the Albert Michelson Exhibit at the Angels Camp Museum located in Angels Camp, California. They will be discussing the life and times of Albert Michelson and the creation of the Albert Michelson Angels Camp Museum Exhibit. Albert A. Michelson was the first Nobel Laureate i...

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Professor Luis Colon. Dr. Colon is is the SUNY Distinguished Professor, A. Conger Goodyear Professor, and Associate Dean for Inclusive Excellence in the College of Arts and Sciences at the University at Buffalo. He received his bachelors degree from University of Puerto Rico at Cayey, and then received the Ph. D. fr...

Dr. Wilson is a research chemist and coordinator of the Cannabis Research Program in the Chemical Sciences Division at the National Institute of Standards & Technology (NIST) in Gaithersburg, Maryland. He received his B.S. degree in Chemistry from Greensboro College followed by a M.S. degree in Chemistry from the same institution. He then moved south to pursue a Ph. D. in Chemistry at the Universi...

Here in Episode #39, podcast host Dr. Jerry Workman speaks with Dr. Macarena Garcia Marin, who is an astrophysicist and instrument scientist for the European Space Agency based at the Space Telescope and Science Institute in Baltimore, MD USA. She will be discussing the highlights of the role of the James Webb Space Telescope, also known as JWST, and its abilities and discoveries using the science...

Here in Episode #37, podcast host Dr. Jerry Workman speaks with Dr. Austin Daniels, application scientist for Yokogawa Fluid Imaging Technologies. This Episode will focus on flow imaging microscopy (FIM), a new technology for subvisible particle characterization in biologics. We have invited Austin to our Analytically Speaking podcast to discuss the current trends and state of using FIM to ensure...

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Dr. Alix Rodowa, Research Chemist within the Organic Chemical Metrology Group at the National Institute of Standards & Technology (NIST) in Gaithersburg, Maryland. At NIST, she is the Environmental Sector Task Lead for the Organic Analysis Working Group for the Consultative Committee for Amount of Substance: Metrolo...

Here in Episode #35, podcast host Dr. Jerry Workman speaks with Dr. Ellen V. Miseo, who has been active in vibrational spectroscopy and instrument development her entire career and is formally trained as a physical chemist. She has worked for instrument companies as well as run laboratory operations. She is past president of both the Coblentz Society and Society for Applied Spectroscopy and curren...

Perrault Uptmor of William & Mary, and Dr. Emanuela Gionfriddo of SUNY at Buffalo. Kate and Emanuela are both returning guests of the pod (see episodes 2 and 14), and joined us on-site at the Boston Convention Center to reflect on what we saw and heard at Pittcon 2025. In a wide-ranging conversation, we touch on a variety of aspects of the Pittcon experience, including networking opportunities, aw...

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Dr. Benjamin Garcia. Dr. Garcia is the Raymond H. Wittcoff Distinguished Professor and Head of the Department of Biochemistry and Molecular Biophysics in the School of Medicine at Washington University in St. Louis. His research interests primarily focus on the development of mass spectrometry-based proteomic approa...

Here in Episode #33, podcast host Dr. Jerry Workman speaks with Dr. Brian G. Rohrback, President of Infometrix, Inc. in Bothell, WA, USA—who has been active in chemometrics research and creating software for complex calibrations and multivariate data analysis since 1983. Infometrix was founded by researchers Bruce Kowalski and Gerry Erickson in 1978. We have invited Brian to our Analytically Speak...

Here in Episode #31, podcast host Dr. Jerry Workman speaks with Dr. Barry M. Wise, Founder and President of Eigenvector Research, Inc. about the meaning of the terms chemometrics, artificial intelligence (AI), machine learning (ML), and neural networks (NNs) within the context of analytical chemistry and process analysis.

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Dr. Farooq Wahab, Research Engineering Scientist at the University of Texas at Arlington. Wahab has interests and expertise in chiral separations, improving the green-ness of chromatographic separations, new detectors for chromatography such as microwave rotational spectroscopy, and new techniques for signal process...

Here in Episode #29, podcast host Dr. Jerry Workman speaks with Dr. Thomas Mayerhöfer from the Leibniz Institute of Photonic Technology in Jena, Germany, about quantitative spectroscopy and wave optics in infrared spectroscopy, including the theory, simulation, and modeling aspects.

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Dr. Molly Atkinson, Assistant Professor of Chemistry at the University of North Texas in Denton, TX, and her graduate student David Hamilton. Atkinson and Hamilton are experts in Chemistry Education Research (CER), and they recently published a paper discussing results of a survey of bachelors-level chemists working...

Here in Episode #27, podcast host Dr. Jerry Workman speaks with Dr. Richard Crocombe of Crocombe Spectroscopic Consulting, about the world of ever shrinking spectrometers. We explore the technologies and applications for such portable and wearable systems and the future of spectroscopy in our everyday lives.

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias discuss highlights and observations from the recently completed HPLC2024 that was held in Denver, Colorado in July. The “HPLC Meeting”, as the conference is affectionately known by regular attendees, is widely regarded as the premier venue to discuss the latest advances in liquid chromatography research and applications, and...

Here in Episode 25, podcast host Dr. Jerry Workman speaks with Dr. Brian C. Smith about the challenges of training scientists to interpret infrared spectra and how to leverage that expertise into building a specialized instrument for analysis of Cannabis.

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Dr. Andre de Villiers, Professor of Chemistry at Stellenbosch University in South Africa. Dr. de Villiers is an expert in multi-dimensional chromatography and leads a research program mainly focused on the use of two-dimensional liquid chromatography coupled with mass spectrometric detection for the deep characteriz...

Welcome to “Analytically Speaking,” the podcast from LCGC International and Spectroscopy. Here in Episode #23, podcast host Dr. Jerry Workman speaks with Dr. Art Springsteen and Dr. David Wyble about the challenges of creating color standards and making color measurements using optical spectroscopy.

In this episode, podcast host Dr. Dwight Stoll talks with Dr. Katelynn Perrault Uptmor, Dr. Pierre-Hugues Stefanuto, and Dr. Petr Vozka about the multidimensional chromatography workshop, better known as the MDCW for short. Kate, PH, Petr, and Dwight are co-organizers of the MDCW workshop, which was held most recently at California State University, Los Angeles. In their conversation they discuss...

Here in Episode 21, podcast host Dr. Jerry Workman speaks with Dr. Art Springsteen about the history and challenges associated with reflection and color standards used around the world for optical spectroscopy.