Parallel Column Regeneration in Clinical Research

This technical report discusses the implementation of parallel column regeneration in clinical research settings, focusing on its configuration with conventional LC-MS/MS systems. The document outlines the benefits of this method, including significant improvements in laboratory efficiency, allowing for up to 74% more samples to be analyzed per hour without compromising analytical performance. The introduction details typical gradient separation methods and emphasizes the importance of thorough column washing to minimize phospholipid accumulation, which can enhance method robustness. The methods section describes the specific equipment and configurations used, including the Waters ACQUITY UPLC I-Class and the processes for preparing samples from whole blood and serum. Results are presented, showing various performance metrics such as injection cycle duration and sample throughput, comparing routine column regeneration with the parallel regeneration approach. The findings indicate that this method effectively increases throughput while maintaining high-quality data, thus supporting its application in clinical research environments.