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Investigations Of Gas Phase Ion Molecule Reactions At Elevated Pressures Using Ion Mobility Mass Spectrometry
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Book Synopsis Investigations of Gas Phase Ion-molecule Reactions at Elevated Pressures Using Ion Mobility-mass Spectrometry by : Kris E. Sahlstrom
Download or read book Investigations of Gas Phase Ion-molecule Reactions at Elevated Pressures Using Ion Mobility-mass Spectrometry written by Kris E. Sahlstrom and published by . This book was released on 1997 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Gas Phase Ion Chemistry by :
Download or read book Advances in Gas Phase Ion Chemistry written by and published by Elsevier. This book was released on 1996-05-14 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Gas Phase Ion Chemistry
Book Synopsis Study of Gas Phase Ion-molecule Reactions Using Resonant Two Photon Ionization-high Pressure Mass Spectrometry by : Junling Gao
Download or read book Study of Gas Phase Ion-molecule Reactions Using Resonant Two Photon Ionization-high Pressure Mass Spectrometry written by Junling Gao and published by . This book was released on 1997 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gas Phase Ion Chemistry by : Michael T. Bowers
Download or read book Gas Phase Ion Chemistry written by Michael T. Bowers and published by Academic Press. This book was released on 2013-10-22 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas Phase Ion Chemistry, Volume 2 covers the advances in gas phase ion chemistry. The book discusses the stabilities of positive ions from equilibrium gas-phase basicity measurements; the experimental methods used to determine molecular electron affinities, specifically photoelectron spectroscopy, photodetachment spectroscopy, charge transfer, and collisional ionization; and the gas-phase acidity scale. The text also describes the basis of the technique of chemical ionization mass spectrometry; the energetics and mechanisms of unimolecular reactions of positive ions; and the photodissociation of gas-phase ions. The applications of molecular beam techniques to the study of ion-molecule collisions; as well as the variational treatment of charge transfer reactions are also encompassed. Chemists and biochemists will find the book invaluable.
Book Synopsis Advances in Gas Phase Ion Chemistry by : L.M. Babcock
Download or read book Advances in Gas Phase Ion Chemistry written by L.M. Babcock and published by Elsevier. This book was released on 2001-12-21 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas phase ion chemistry is a broad field that has many applications and which encompasses various branches of chemistry and physics. Advances in Gas Phase Ion Chemistry, Volume 4, describes innovative ways of studying reactions as well as the application of unique apparatuses to problems in this field. This volume contains a series of chapters, in the general area of gas phase chemistry and physics, which are at the cutting edge of research. The chapters are not meant to be general reviews, but focus on the author's own work. They focus on both experimental and theoretical work, which gives a balance to the volume. Applications are included to appeal to a wider audience and to broaden the knowledge of the more fundamentally inclined. An application to environmental pollution monitoring and medical monitoring of breath is included. With successive volumes, the coverage broadens to include more current research in the title area. The book is aimed at graduate researchers, university faculty and graduates in industry. The editors have made a specific effort to include contributions from those relatively new to the field, which brings in new ideas and perspectives, as well as those more established workers, who bring a wealth of experience.
Book Synopsis Third International Workshop on Ion Mobility Spectrometry by :
Download or read book Third International Workshop on Ion Mobility Spectrometry written by and published by . This book was released on 1995 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion/Molecule Attachment Reactions: Mass Spectrometry by : Toshihiro Fujii
Download or read book Ion/Molecule Attachment Reactions: Mass Spectrometry written by Toshihiro Fujii and published by Springer. This book was released on 2015-08-03 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the mechanism of alkali-metal ion/molecule association reaction, surveys the instrumental basis to study its kinetic, and describes the instrumentation to the measurement of alkali-metal ion affinities. The applications of the ion complexation mechanism in the condensed phase in reaction to direct analysis MS are also covered. Other topics include mechanism and reaction rate, experimental and theoretical ion affinities, applications of ion attachment reactions (IAR) to mass spectrometry such as alkali ion CIMS, ion attachment MS and cationization mass spectrometry of ESI, FAB, FD, LD, MALDI and SIMS and topics of IAR-based direct analysis mass spectrometry.
Book Synopsis Ion Mobility Spectrometry by : G.A. Eiceman
Download or read book Ion Mobility Spectrometry written by G.A. Eiceman and published by CRC Press. This book was released on 2005-06-23 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key Developments for Faster, More Precise Detection Capabilities Driven by the demand for the rapid and advanced detection of explosives, chemical and biological warfare agents, and narcotics, ion mobility spectrometry (IMS) undergone significant refinements in technology, computational capabilities, and understanding of the principles of gas phase
Book Synopsis Gas Phase Ion Chemistry by : Michael T. Bowers
Download or read book Gas Phase Ion Chemistry written by Michael T. Bowers and published by Academic Press. This book was released on 2013-10-22 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas Phase Ion Chemistry, Volume 1 covers papers on the advances of gas phase ion chemistry. The book discusses the advances in flow tubes and the measurement of ion-molecule rate coefficients and product distributions; the ion chemistry of the earth's atmosphere; and the classical ion-molecule collision theory. The text also describes statistical methods in reaction dynamics; the state selection by photoion-photoelectron coincidence; and the effects of temperature and pressure in the kinetics of ion-molecule reactions. The energy distribution in the unimolecular decomposition of ions, as well as the rapidity of ion-molecule reactions are also encompassed. Chemists, physicists, and people working in aeronomy laboratory and involved in space research will find the book invaluable.
Book Synopsis Studies of Ions and Ion-molecule Reactions in the Gas Phase Using Mass Spectrometry by : Alyn James Parry
Download or read book Studies of Ions and Ion-molecule Reactions in the Gas Phase Using Mass Spectrometry written by Alyn James Parry and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reactive Intermediates by : Leonardo S. Santos
Download or read book Reactive Intermediates written by Leonardo S. Santos and published by John Wiley & Sons. This book was released on 2009-11-04 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last two decades there has been considerable growth in the development of electrospray ionization mass spectrometry (ESI-MS) as a practical method in the study of reaction mechanisms. This method allows the interception and characterization of key intermediates, either as transient species or as protonated/deprotonated forms of neutral species by API-MS. The outstanding features and advantages of ESI-MS make it one of the most suitable tools for the fast screening of intermediates directly from solution, providing hitherto unavailable chemical information to organic chemists. This monograph provides an overview of the mechanisms involved in ESI-MS, the historical perspectives before looking further in-depth at specific reactions and intermediates. Written by researchers in the field, this book is an unique resource for the understanding of this cutting-edge technique.
Book Synopsis Studies of Ions and Ion-molecule Reactions in the Gas Phase Using Mass Spectrometry by : Alyn James Parry
Download or read book Studies of Ions and Ion-molecule Reactions in the Gas Phase Using Mass Spectrometry written by Alyn James Parry and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gas-phase Ion Chemistry Investigations by Ion Mobility and Mass Spectrometry by : Zhaoyu Zheng (Chemist)
Download or read book Gas-phase Ion Chemistry Investigations by Ion Mobility and Mass Spectrometry written by Zhaoyu Zheng (Chemist) and published by . This book was released on 2021 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Mobility Spectrometry, Third Edition by : G.A. Eiceman
Download or read book Ion Mobility Spectrometry, Third Edition written by G.A. Eiceman and published by CRC Press. This book was released on 2013-12-10 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the turn of the twenty-first century, applications of ion mobility spectrometry (IMS) have diversified, expanding their utility in the military and security spheres and entering the realms of clinical practice and pharmaceutical exploration. Updated and expanded, the third edition of Ion Mobility Spectrometry begins with a comprehensive discussion of the fundamental theory and practice of IMS. Divided into four sections—Overview, Technology, Fundamentals, and Applications—the authors treat innovations and advances in all aspects of IMS in a fresh, thorough, and revised format. Features: Introduces the definitions, theory, and practice of IMS and summarizes its history from the beginnings of the study of ions to present commercial and scholarly activities Presents the technology of IMS from a measurement perspective—covering inlet through ion formation, ion injection, electric fields, drift tube structures, and detectors Covers the end results of measurement, the mobility spectrum, and the transformative trend of ion mobility: mass spectrometry Discusses the influence on the experimental parameters on the mobility of ions Mobility-based methods are no longer restricted to volatile substances and indeed the many benefits of this technology—simplicity, convenience, and the low cost of technology—have become recognized as meritorious in a wide range of uses. This is also true for the advantages of measurements—high speed, distinctive spectral features, and operation in ambient pressure with thermalized ions. Ion Mobility Spectrometry, Third Edition serves specialists in the field of IMS who are interested in the potential of recent developments and researchers, engineers, and students who want a comprehensive overview of this technology.
Book Synopsis Studies of Thermal Ion-molecule Equilibria-determinations of Gas-phase Basicities and Proton Affinities by High Pressure Mass Spectrometry by : Yan Kui Lau
Download or read book Studies of Thermal Ion-molecule Equilibria-determinations of Gas-phase Basicities and Proton Affinities by High Pressure Mass Spectrometry written by Yan Kui Lau and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pulsed electron beam, high pressure quadrupole mass spectrometer which was constructed for the study of ionmolecule equilibria is described. The mass spectrometer can be operated with ion source pressures up to 10 torr. The equilibrium constants for the proton transfer reactions: B-jH+ + B2 = B-j + B^H+ involving some 50 bases B whose gas-phase basicities are between water and 1,8-bis- (dimethylami no)naphthalene were measured at 600°K. This allowed the evaluation of AG°Q0 for the proton transfer reactions. A complete ladder of equilibria connecting these compounds was obtained. The temperature dependence of equilibrium constant was studied for two proton transfer reactions involving benzene and halobenzenes(f1uoroand chlorobenzene). The results showed that AS0 for proton transfer reactions can be estimated by considering the rotational symmetry numbers. The estimation of AS0 permitted the evaluation of AH0 from AG° for proton transfer reactions. Using the external standard proton affinity, PA(isobutene) = 198.2 kcal/mole (Beauchamp, Tsang), the absolute proton affinities of different compounds were obtained. These include: water 171.7, benzene 185.4, methanol 186.2, acetone 198.6, ketene 199.2, benzoic acid 200.2, ammonia 207.6, DMS0 214.4, methylamine 217.3 and 1 ,8-bi s(dimethyl amino)naphthalene 245.1 kcal/mole. The substituent effects on the intrinsic basicity of benzene were considered. It was observed that all monosubstituted benzenes have proton affinities higher than that of benzene. From the correlations of proton affinities with Hammett type a + substituent constants and ST0-3G calculated P results, it is suggested that protonation for anisole, phenol, ethylbenzene, toluene, fluoro- and chlorobenzene occurs at the ring. Substituent protonation is energetically more favorable for acetophenone, benzaldehyde, benzoic acid, benzonitrile and nitrobenzene. The proton affinity for Nprotonated aniline is very close to that for ring protonation. The gas-phase basicities of N-methyl substituted 1,8- diaminonaphthalenes and several related compounds were studied. The results indicated that ring protonation yields more stable ion for 1-aminonaphthal ene and m-phenylenediamine than N-protonation. All 1,8-diami nonaphthalenes are N-protonated. N-methyl substitution enhances the basicity of 1,8-diaminonaphthalene , but strong attenuation of the effects was observed in solution except for the fully N-methyla ted base. The high gas-phase basicity of 1,8-bis- (dimethylami no)naphthalene obtained in the present study is in agreement with the suggested explanation for its high aqueous basicity, namely, the effective removal of steric strain in the neutral base on protonation. The solvation of the proton by dimethyl sulfoxide molecules: H+(DMS0) , + DMSO = H+(DMS0)n> was studied for n = 2,3. The (n-1 ,n) interactions for DMSO were compared with those for water and dimethyl ether. The results showed that the ion-dipolar interactions in H (DM S 0) 3 is as strong as hydrogen bonding in the stabilization of the H+(H[subscript 2]O)[subscript 3] cluster.
Book Synopsis Studies of thermal ion-molecule equilibria-determination of gas-phase basicities and proton affinities by high pressure mass spectrometry by : Yan Kui Lau
Download or read book Studies of thermal ion-molecule equilibria-determination of gas-phase basicities and proton affinities by high pressure mass spectrometry written by Yan Kui Lau and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Gas Phase Ion Chemistry by : K.R. Jennings
Download or read book Fundamentals of Gas Phase Ion Chemistry written by K.R. Jennings and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the proceedings of the 1990 Advanced Study Institute entitled "Fundamentals of Gas Phase Ion Chemistry" held at Mont Ste. Odile , Alsace, France, 25th June -6th July, 1990. The Institute brought together over 100 physicists, physical and organic chemists working on a wide variety of topics with gas-phase ion chemistry as the common theme. Many different viewpoints, making use of very different experimental and theoretical approaches, were brought to bear on the subject and provided a stimulating and up-to-date account of the subject. Although the Institute was built around the invited lectures, many specific points were addressed in workshops which consisted of informal discussion groups which were organised by participants during the Institute. This volume therefore contains not only chapters based on the lectures but summaries of many of the workshops which adds considerably to the diversity of information presented. This Advanced Study Institute was the fifth in a series of NATO-sponsored institutes devoted to various aspects of the physics and chemistry of gas phase ions. These meetings have been held every four years since the first, held in Biarritz in 1974, considered "Interactions between Ions and Molecules". The five volumes which comprise the proceedings of these meetings illustrate very clearly the many advances in theory and experiment which have taken place over the last 20 years.
