ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,413, issued on Sept. 23.

"Automated sample handling system for liquid chromatography-mass spectrometry" was invented by Daniel Hasle (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "Presented is an automated fluid handling system for handling a biological fluid sample prior to being delivered for liquid chromatography-mass spectrometry (LCMS) analysis. The automated fluid handling system includes two multi-position selector valves fluidly connected to a hollow membrane fiber filter. Multiple syringe pumps are fluidly connected to the hollow membrane fiber filter. A purification column is fluidly connected to an outlet port of a multi-positio...