Abstract: Advances in Reaction of Metal Ion-Molecular in Gas Phase with Mass SpectrometryLin Chui; Zhang Fuyi (Central Laboratory, Nankai University, Tianjin 300071, China )Liu Hong (Xinyang Advanced Agricultural College, Xinyang 464000, Henan Province, China )Abstract:Metal ion-molecular reaction in gas phase has been highly appreciated, and a great many of new methods and fruits has been obtained recent years. The study of metal ion -molecular reaction with mass spectrmetry has been reviewed. It includs a variety of methods, metal elements, neutral organic compounds, small inorganic moleclars and their mechanims.Keywords:gaseous metal ion, gaseous ionic reaction, molecular beam