Touch Express™ Open Port Sampling Interface (OPSI) – Direct analysis of solids, liquids, surfaces and fibers with the expression® CMS

The Touch Express™ Open Port Sampling Interface (OPSI), is designed for simple sampling of solids, liquids and sample preparation tips and fibers. The novel ambient sampling technique was developed by Gary Van Berkel and Vilmos Kertesz, of Oak Ridge National Laboratory.

Paired with the electrospray ion source of the expression^® Compact Mass Spectrometer, the product incorporates a low volume, open port of continuously swept solvent, flowing directly into the electrospray ion source of the mass spectrometer.