Download or read book The Effective Temperatures of Gas phase Biological Molecules Stored in a Quadrupole Ion Trap written by Geng Li and published by . This book was released on 2008 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The internal energy distribution undergoing collision-induced dissociation (CID) in the cell of a quadrupole ion trap (QIT) mass spectrometer can be characterized by the effective temperature, which would help determine the activation energy and entropy. Here, the relationship in a Bruker QIT has been reexamined based on kinetic measurements at two qz values. An observed linear relationship between ion effective temperatures and resonant activation amplitudes appears qualitatively different from simplified theoretical simulation, which is in agreement with previous results on Finnigan ion trap. However, the normalization process aiming to compensate for the m/z dependency of the required fragmentation energy that is used successfully in Finnigan-geometry traps is not entirely successful for use in Bruker-geometry trans. The calibration determined here roughly indicates the relationship between ion effective temperature, resonant excitation amplitude and ion m/z. However, Successful extraction of the dissociation energetics still requires a better accuracy of the calibration.
Download or read book Gas Phase IR Spectroscopy and Structure of Biological Molecules written by Anouk M. Rijs and published by Springer. This book was released on 2015-06-03 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry presents critical reviews of the present and future trends in modern chemical research. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field. Review articles for the individual volumes are invited by the volume editors. Readership: research chemists at universities or in industry, graduate students.
Download or read book Cold Ion Spectroscopy of Biological Molecules in the Gas Phase written by Natalia Nagornova and published by . This book was released on 2011 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Practical Aspects of Trapped Ion Mass Spectrometry Volume IV written by Raymond E. March and published by CRC Press. This book was released on 2010-05-25 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the substantial increase in popularity of quadrupole ion traps and Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometers, Practical Aspects of Trapped Ion Mass Spectrometry, Volume IV: Theory and Instrumentation explores the historical origins of the latest advances in this expanding field. It covers new methods for trapp
Download or read book Reaction Dynamics Involving Ions Radicals Neutral and Excited Species written by Stefano Falcinelli and published by Frontiers Media SA. This book was released on 2020-01-22 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2005 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomarker Validation written by Harald Seitz and published by John Wiley & Sons. This book was released on 2015-02-23 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Built on a decade of experience with novel molecular diagnostics, this practice-oriented guide shows how to cope with validation issues during all stages of biomarker development, from the first clinical studies to the eventual commercialization of a new diagnostic test.
Download or read book Science written by John Michels (Journalist) and published by . This book was released on 1992 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Forensic Toxicology written by Barry Levine and published by Amer. Assoc. for Clinical Chemistry. This book was released on 2003 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Diffuse Interstellar Bands written by A.G.G.M. Tielens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mystery of the diffuse interstellar bands has been variously a curiosity, a co nundrum, and a nuisance for astronomers in the seven decades since the features were first noticed, but recently they have become a forefront issue in astrophysics. Ever since Paul Merrill, in a series of papers starting in 1934, pointed out the interstellar and unidentified nature of the bands, a Who's Who of twentieth century astronomers have tried their hands at solving the problem of identifying the carriers. Henry Norris Russell, Pol Swings, Otto Struve, Paul Ledoux, W. W. Morgan, Walter Adams, Jesse Greenstein, Lawrence Aller, and Gerhard Herzberg all briefly entered the stage, only to move on quickly to other problems where the chances for progress appeared more realistic. In more recent times a number of equally prominent scientists have pursued the bands, but generally only as a sideline to their real astronomical research. But in the past decade, and particularly in the past three years, the view of the search for the diffuse band absorbers as an interesting but perhaps quixotic quest has changed. Today there are several astronomers, as well as laboratory chemists, who are devoting substantial research time and resources to the problem and, as perhaps the most reliable indicator of the newly elevated status of research in this field, some research grants have now been awarded for the study of the bands.
Download or read book Cold Molecules written by Roman Krems and published by CRC Press. This book was released on 2009-06-25 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: The First Book on Ultracold MoleculesCold molecules offer intriguing properties on which new operational principles can be based (e.g., quantum computing) or that may allow researchers to study a qualitatively new behavior of matter (e.g., Bose-Einstein condensates structured by the electric dipole interaction). This interdisciplinary book discusse
Download or read book Mass Spectrometry written by Jürgen H Gross and published by Springer Science & Business Media. This book was released on 2006-04-05 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mass Spectrometry is an ideal textbook for students and professionals as well as newcomers to the field. Starting from the very first principles of gas-phase ion chemistry and isotopic properties, the textbook takes the reader through the design of mass analyzers and ionization methods all the way to mass spectral interpretation and coupling techniques. Step-by-step, the reader learns how mass spectrometry works and what it can do. The book comprises a balanced mixture of practice-oriented information and theoretical background. It features a clear layout and a wealth of high-quality figures. Exercises and solutions are located on the Springer Global Web.
Download or read book Quadrupole Ion Trap Mass Spectrometry written by Raymond E. March and published by Wiley-Interscience. This book was released on 2005-09-12 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: A definitive reference, completely updated Published in 1989, the First Edition of this book, originally entitled Quadrupole Storage Mass Spectrometry, quickly became the definitive reference in analytical laboratories worldwide. Revised to reflect scientific and technological advances and new applications in the field, the Second Edition includes new chapters covering: * New ion trap instruments of high sensitivity * Peptide analysis by liquid chromatography/ion trap tandem mass spectrometry * Analytical aspects of ion trap mass spectrometry combined with gas chromatography * Simulation of ion trajectories in the ion trap One additional chapter discusses the Rosetta mission, a "comet chaser" that was sent on a ten-year journey in 2004 to study the comet Churyumov-Gerasimenko using, among other instruments, a GC/MS system incorporating a specially designed ion trap mass spectrometer. This comprehensive reference also includes discussions of the history of the quadrupole ion trap, the theory of quadrupole mass spectrometry, the dynamics of ion-trapping chemistry in the quadrupole ion trap, the cylindrical ion trap, miniature traps, and linear ion traps. Complete with conclusions and references, this primer effectively encapsulates the body of knowledge on quadrupole ion trap mass spectrometry. With its concise descriptions of the theory of ion motion and the principles of operation, Quadrupole Ion Trap Mass Spectrometry, Second Edition is ideal for new users of quadrupole devices, as well as for scientists, researchers, and graduate and post-doctoral students working in analytical laboratories.
Download or read book Low Temperatures and Cold Molecules written by Ian W. M. Smith and published by Imperial College Press. This book was released on 2008 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together, for the first time, the results of recent research in areas ranging from the chemistry of cold interstellar clouds (10-20 K), through laboratory studies of the spectroscopy and kinetics of ions, radicals and molecules, to studies of molecules in liquid helium droplets, to attempts to create molecular (as distinct from atomic) Bose-Einstein condensates.
Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transport Properties of Ions in Gases written by Edward A. Mason and published by Wiley-VCH. This book was released on 1988-08-09 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents thorough coverage of the transport properties of ions in gases. Starts from first principles, making this book useful to those new to the field as well as to experts. Describes the motions of ions in gases in electric fields, methods for measuring mobilities and diffusion coefficients, and pitfalls in measuring these quantities. Provides a detailed development of the theory of transport processes in the context of the kinetic theory of gases. Includes relevant experimental techniques and an index to experimental data.
Download or read book Principles and Applications of Clinical Mass Spectrometry written by Nader Rifai and published by Elsevier. This book was released on 2018-06-26 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles and Applications of Clinical Mass Spectrometry: Small Molecules, Peptides, and Pathogens is a concise resource for quick implementation of mass spectrometry methods in clinical laboratory work. Focusing on the practical use of these techniques, the first half of the book covers principles of chromatographic separations, principles and types of mass spectrometers, and sample preparation for analysis; the second half outlines the main applications of this technology within clinical laboratory settings, including determination of small molecules and peptides, as well as pathogen identification. A thorough yet succinct guide to using mass spectrometry technology in the clinical laboratory, Principles and Applications of Clinical Mass Spectrometry: Small Molecules, Peptides, and Pathogens is an essential resource for chemists, pharmaceutical and biotech researchers, certain government agencies, and standardization groups. Provides concrete examples of the main applications of mass spectrometry technology Describes current capabilities of the LC- and MS-based analytical methods Details methods for successful analytical work in the field
