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Overview of Webinars
Tuesday, July 12
10:00 AM (PDT)
LC Column Selection for Special Cases: High Throughput, High pH, High Aqueous, High Retention/Resolution
Speaker: Genevieve Hodson
Senior Technical Specialist, Phenomenex
Key Learning Points:

  • Learn about column selection basics
  • Explain the selection approach for high throughput, high pH, high aqueous, and high retention/resolution
  • Examine stationary phase suitability, and mobile phase considerations with examples
Thursday, July 21
10:00 AM (PDT)
Analytical Considerations to Improve Regulated and Unregulated Analysis of PFAS Compounds
Speakers: Richard Jack, PhD Global Market Development Manager, Food and Environmental, Phenomenex
Karl Oetjen, PhD Senior Scientist, SCIEX
Key Learning Points:

  • Explore how column choice affects PFAS selectivity
  • Learn how modified C18, -Hexyl, Phenyl-Hexyl, and Fluorinated phases affect PFAS selectivity
  • Understand how using organic modifiers can improve PFAS selectivity
Tuesday, July 26
10:00 AM (PDT)
Exploring LC Selectivity Using Steroids in a Clinical Research Setting
Speaker: Mackenzie Freige, Application Scientist, Phenomenex
Key Learning Points:

  • An overview of LC selectivity theory and its parameters
  • A deep dive into column phases and expected interactions with five different steroids
  • Review of results for screening 4 phases and how they affect the LC selectivity for a steroid panel
Meet Our Speakers
Genevieve Hodson
Genevieve Hodson
Senior Technical Specialist, Phenomenex
Genevieve graduated from the University of Texas with a BS in Chemistry located in her home town of Austin Texas. She spent 2 years of her undergraduate performing research in an Organic Chemistry Lab synthesizing intermediates. Out of school she spent 4 years as an Analytical Chemist in the QC and R&D Department of Cerilliant (a Sigma Millipore Company). There she worked with many analytical instruments but became an expert at LC by performing purity analysis, customer specific methods, validations, qc testing and stability studies on a wide range of small molecules including pharmaceuticals, pesticides, explosives and illegal substances. From there she moved to Los Angeles California where she worked at Johnson and Johnson and then a small dietary supplement company. After Genevieve spent a year living abroad in Israel raising her first son, she moved back to LA where she got hired as a Technical Specialist at Phenomenex. At Phenomenex she enjoys continuing to learn about chromatography every day through helping customer with all their chromatography needs!
 Richard Jack, PhD
Richard Jack, PhD
Global Market Development Manager, Food and Environmental, Phenomenex
Richard is the Global Market Development manager for the environmental and food markets at Phenomenex corporation. He has over 18 yrs. experience with chromatography and mass spectrometry for the environmental, food, cannabis, semiconductor, chemical, and pharmaceutical industries. Richard has collaborated with global regulatory agencies to develop validated methods through new applications, instrumentation, column chemistries, and software. He is a former EPA Scientific Advisor for the EPA’s panel on Hydraulic Fracturing, a coauthor for EPA 557 and 557.1 along with ASTM D8001 and updates to D4327 and D6919 methods. He is currently the Second Vice Chairman for the ASTM D19 subcommittee on water analysis. Previously Richard was a Vertical marketing manager with Thermo Fisher Scientific, Dionex and Hitachi High Technologies where he designed analytical instrumentation, including IC and HPLC systems, pumps, autosamplers, and a variety of detectors. He received his Ph.D. in biochemistry and anaerobic microbiology from Virginia Tech University in Blacksburg, VA, He received his Master’s in ecology from the University of Tennessee in Knoxville, TN.
Karl Oetjen, PhD
Senior Scientist, SCIEX
Karl Oetjen is a Senior Technical Marketing Scientist for Food, Environmental, Forensic, Clinical and Cannabis applications at SCIEX. Before joining SCIEX, he completed his PhD at Colorado School of Mines (Golden, Colorado) in Hydrologic Science and Engineering under Dr. Chris Higgins. Karl’s dissertation research focused on nontarget characterization of complex surfactant mixtures, including aqueous film forming foams. This work led to the discovery several novel per- and polyfluorinated alkyl substances (PFAS) that since have been found in variety of environmental samples and industrial chemicals. Since joining SCIEX, Karl has worked with numerous labs creating and implementing both regulated and unregulated quantitative and qualitative screening methods.
Mackenzie Freige
Application Scientist, Phenomenex
Mackenzie is an Application Scientist at PhenoLogix, and is based in Torrance, CA. She has undergraduate degrees in Chemistry and in Life Sciences. She joined Phenomenex in 2021, and brings extensive experience in liquid chromatography-mass spectrometry. In her free time she practices yoga and enjoys reading.