Development of an Ion Transfer Tether for Non-Proximate Ion Formation and Detection in Direct Analysis In Real Time (DART) MS

摘要

An efficient ion-transfer tube was constructed from stainless steel gas conduit and Swagelok fittings. The stainless steel tether transmitted both negative and positive ions over distances between 1’ and 3’ with little loss of signal. The tether was optimized to interface to a DART SVP for the detection of unknown compounds off of a surface. The tether is well suited for future applications that require analysis of large samples or use of a mobile or miniature mass spectrometer.