Direct Analysis of Intact Proteins using the Advion Touch Express^™ Open Port Sampling Interface (OPSI) with the expression^L Compact Mass Spectrometer

Touch Express^™ is a new sampling device for mass spec analysis using a technique developed by Gary Van Berkel and Vilmos Kertesz of Oak Ridge National Laboratory – the Open Port Sample Interface (OPSI). This fast, versatile sample inlet paired with the expression^® Compact Mass Spectrometer (CMS) provides simple molecular weight determination of surfaces, solids and liquids in < 30s.