Walk up MS systems are located on the ground floor MS lab (20.062) and are available for anyone in the department to use after an initial 30 minute training session. These provide nominal mass, positive and negative ion electrospray high and low resolution mass spectra. Two systems are dedicated to 'small molecules via loop injection. There is also a general walk up LC-MS system. Please contact a member of the MS staff before using any of these systems for the first time. Guidelines for sample preparation for Open Access MS are found below, or can be downloaded as a pdf.