This afternoon session will be presided over by Rick King of PharmaCadence Analytical Services and will be held from 2:30–4:30 p.m. in Ballroom 220/221.
The first presentation in the session will be given by Leanne Grafmuller of Pfizer and is titled “The Evaluation and Development of Automated Workflows in Blood, Plasma and Urine Using Volumetric Absorptive Microsampling (VAMS).” Grafmuller will discuss the aims of her group’s work to devise an automated sample preparation and extraction protocol using Mitra and direct-inject analysis of sample extracts using HILIC chromatography to streamline bioanalytical workflows.
The next talk, to be delivered by Brian Rappold of Essential Testing, is titled “Calibration Curve Sensitivity: The Role of Internal Standard on Slope and Precision of Clinical LC-MS/MS Assays.” This work will address the effect of internal standard concentration and response on the sensitivity of endogenous and exogenous assay calibration.
The third talk will be given by Kasie Fang of GlaxoSmithKline and is titled “LC-MS/MS and LC-HRMS Approaches to Support Toxicity Studies of a Glycolipid Vaccine Adjuvant.” Kang will discuss a sensitive and robust LC–MS-MS method that was developed to provide bioanalytical support for toxicity studies with varied species and matrices.
Tom Van De Goor of Agilent Technologies will give the next talk titled “Improving Quantitative Analysis through Reduction of Matrix Suppression Effects by coupling Multi-Dimensional Chromatography to ESI-MS.” Van De Goor’s talk will focus on the benefits for accurate quantitation of analytes in complex matrices that are gained by coupling a second dimension separation directly to standard LC–MS.
The penultimate presentation is titled “Whole blood Analysis using New Solid Phase Microextraction Devices and Investigation of the Hematocrit Effect,” and will be given by Nathaly Rayes Garces. This talk will present an alternative support material to manufacture SPME devices for bioanalytical applications and the results from an evaluation of the hematocrit effect on SPME extractions from blood.
Finally, Mark Wrona of Waters Corporation will present “Comparison of Travelling Wave IMS-QTof Geometries and Acquisition Modes for Quantitative Analysis.” Wrona will discuss the performance characteristics of current travelling wave-based ion mobility platforms and advances using a novel traveling wave ion mobility time-of-flight geometry to enhance the resolution, sensitivity, and specificity of data for molecules using the properties of m/z and collisional cross section area.
Detecting Hyper-Fast Chromatographic Peaks Using Ion Mobility Spectrometry
May 6th 2025Ion mobility spectrometers can detect trace compounds quickly, though they can face various issues with detecting certain peaks. University of Hannover scientists created a new system for resolving hyper-fast gas chromatography (GC) peaks.
University of Oklahoma and UC Davis Researchers Probe Lipidomic Profiles with RP-LC–HRMS/MS
May 6th 2025A joint study between the University of Oklahoma Health Sciences Center (Oklahoma City, Oklahoma) and the UC Davis West Coast Metabolomics Center (Davis, California) identified differentially regulated lipids in type 2 diabetes (T2D) and obesity through the application of reversed-phase liquid chromatography-accurate mass tandem mass spectrometry (RP-LC-accurate MS/MS).
Automated Sample Preparation (ISO 20122) for MOSH/MOAH in Seasoning Oils
May 6th 2025This work presents an Automated Sample Preparation procedure for MOSH/MOAH analysis of Seasoning Oils. We compare results from a manual epoxidation procedure compliant with DIN 16995 with results based on fully automated sample preparation (epoxidation and saponification) compliant with ISO 20122. In both cases, online clean-up via activated aluminum oxide (AlOx) are used to remove interfering n-alkanes from the MOSH fraction during the HPLC run. Automated data evaluation using a dedicated software (GERSTEL ChroMOH) is presented.