Chemical Sciences: A Manual for CSIR-UGC National Eligibility Test for Lectureship and JRF/Ion attachment mass spectrometry

Ion-attachment mass spectrometry (IAMS) is a form of mass spectrometry that uses a "soft" form of ionization similar to chemical ionization in which a cation is attached to the analyte molecule in a reactive collision: Where M is the analyte molecule, X+ is the cation and A is a non-reacting collision partner. Lithium ion attachment mass spectrometry: Instrumentation and features Review of Scientific Instruments 2007-11-01 Principle This technique is applicable to gases or any materials that can be vaporized. It uses a non-fragmenting non-conventional ionisation mode, by attachment of a lithium (or alkaline) ion to the gas to be analysed with a more traditional mass filter. This instrument is more dedicated to analysis of moderately-sized molecules such as organic or aromatic compounds. Aromatic ion attachment mass spectrometry: an ion-molecule reaction for organosulfur analysis Organic Mass Spectrometry 2007-11-01 Applications Currently, it is used industrially to verify, with a high throughput, the concentrations of brominated flame retardants (BFR) in plastics in compliance with European RoHS (Restriction of Hazardous Substances) regulation in place since 2006. The banned molecules include PBB and PBDE, whose concentration should not exceed 0.1% w/w. The guide of environmental quality assurance for a supplier of JVC July 2006 JVC http://www.jvc-victor.co.jp/company/environ/wr/gprocure/eqaguide_e.pdfPittcon 2006; Poster by Y. Shiokawa; The Rapid Analysis of Brominated Flame Retardants in Resin Used for Electrical Appliances by Ion Attachment Mass Spectrometry. State of bromine based flame retarding agent mixing and its countermeasure Sangyo to Kankyo 2007-11-01 IAMS has also been used to analyze diesel exhaust particlesMasaki H, Chen L, Korenaga T Direct analysis of diesel exhaust particles by fragmentation-free mass spectrometry using ion attachment mass spectrometry Environmental sciences : an international journal of environmental physiology and toxicology 13 6 347–52 2006 17273150 , in ceramic processing Tsugoshi T, Nagaoka T, Nakamura M, Shiokawa Y, Watari K Application of ion attachment mass spectrometry to evolved gas analysis for in situ monitoring of porous ceramic processing Anal. Chem. 78 7 2366–9 2006 16579621 10.1021/ac0518248 and in critical SiO2 etching during semiconductor manufacturing. References Bibliography Development of ion attachment mass spectrometry and its applications Y. Shiokawa; M. Nakamura; H. Maruyama; Y. Hirano; Y. Taneda; M. Inoue; T. Fujii Bunseki Kagaku 53 6 475–489 2004 Japanese 10.2116/bunsekikagaku.53.475 http://www.jstage.jst.go.jp/article/bunsekikagaku/53/6/53_475/_article In situ analysis of perfluoro compounds in semiconductor process exhaust: Use of Li+ ion-attachment mass spectrometry M. Nakamura, K. Hino, T. Sasaki, Y. Shiokawa and T. Fujii 10.1116/1.1376704 2001 Journal of Vacuum Science & Technology A Vacuum Surfaces and Films 19 1105 Lithium ion attachment mass spectrometry for on-line analysis of trace components in air: direct introduction Fujii T.; Selvin P.C.; Sablier M.; Iwase K. 10.1016/S1387-3806(01)00469-9 2001 Journal of Vacuum Science & Technology A Vacuum Surfaces and Films 19 1105 Mass Spectrometric Detection of Ionic and Neutral Species During Highly Preheated Air Combustion by Alkali Element Ion Attachment T. Ishiguro, A. Matsunami, K. Matsumoto, K. Kitagawa, N. Arai, A. K. Gupta Journal of Engineering for Gas Turbines and Power 10.1115/1.1473158 2001 19 1105