Posters & Presentations

From Complexity to Clarity: Confident Method Development for PFAS and Chemical Residues

22 Jan 2026

Between time constraints, sample turnover demands, cost pressures, and evolving regulations, developing and optimizing testing methods for PFAS (including ultrashort-chain compounds) and chemical residues is increasingly complex. This session will explore the challenges of building accurate, reliable methods for these critical compound classes. Attendees will gain practical insights into simplifying method development through purpose-built tools, enhanced SPE workflows, and innovative inert LC and LPGC column formats that support higher throughput and consistent performance.

Anyone looking to improve laboratory efficiency in PFAS and chemical residue analysis will benefit from attending this session.

Authors

  • Ramkumar Dhandapani

    Dr. Ramkumar Dhandapani is a seasoned analytical chemist with over 23 years of experience in the chromatography industry and a Ph.D. in analytical chemistry. During his career, he has specialized in method development, validation, and the troubleshooting of chromatography methods. He has developed numerous regulatory-compliant methods across diverse sectors, including environmental analysis, food quality and safety, pharmaceutical, fuels, and chemical industries. Currently, Dr. Dhandapani is the Director of Product Management at Restek, he is keen on innovation in chromatography and scaling breakthrough innovations to market as commercial products.

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  • Shun-Hsin Liang, PhD

    Shun-Hsin is a senior principal scientist in LC Solutions at Restek. He received his bachelor’s degree from the National Taiwan University in 1988 and obtained his PhD from Michigan State University in 1996. He performed postdoctoral research at the University of Michigan from 1996 to 2000 for oncology studies. In 2001, he was appointed as research faculty at The Pennsylvania State University and focused on molecular toxicology research. In 2006, he joined MPI Research Inc. as a senior research scientist and was a study director for GLP analytical projects. In 2013, Dr. Liang joined the LC Solutions department at Restek and specialized in developing application methods across the fields of environmental, food safety, and life sciences.

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  • Alexis Shelow

    Alexis is a scientist in the sample preparation R&D department. Her primary focus is SPE in the environmental sector. In her previous role at Restek as an LC manufacturing chemist, she developed skills related to synthesizing silica particles, bonding stationary phases, and optimizing procedural workflows. Alexis attended Delaware Valley University where she earned her BS in wildlife biology.

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