Download or read book The Design and Application of a Field Transportable Time of flight Mass Spectrometer ATOFMS and Use of Two Step Laser Desorption ionization L2MS to Determine PAH in Single Particles written by Bradley Douglas Morrical and published by . This book was released on 2000 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Further Development and Application of Laser Desorption Ionization LDI Using Aerosol Time of flight Mass Spectrometry ATOFMS written by Ryan Jay Wenzel and published by . This book was released on 2004 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Single Particle Mass Spectrometry Combustion Source Characterization and Atmospheric Apportionment of Vehicular Coal and Biofuel Exhaust Emissions written by David Townsend Suess and published by . This book was released on 2002 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Atmospheric Aerosol Processes Using Single Particle Mass Spectrometry written by Jeffrey Robert Whiteaker and published by . This book was released on 2002 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Source Profiling and Apportionment of Airborne Particles written by Philip Joseph Silva and published by . This book was released on 2000 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of Matrix assisted Laser Desorption ionization to On line Aerosol Time of flight Mass Spectrometry written by Ch.E. Kientz and published by . This book was released on 2002 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development Characterization and Refinement of a Transportable Aerosol Time of flight Mass Spectrometer written by Tas Dienes and published by . This book was released on 2003 with total page 400 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 2000 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Refinement Calibration and Field Studies Involving Transportable Aerosol Time of flight Mass Spectrometers written by Sylvia H. Pastor and published by . This book was released on 2003 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of a Time of Flight Mass Spectrometry Method for the Screening of Polycyclic Aromatic Hydrocarbons and Nitro substituted Polycyclic Aromatic Hydrocarbons written by J. Suro and published by . This book was released on 2000 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Novel Techniques and Applications in Single Particle Mass Spectrometry written by John Francis Cahill and published by . This book was released on 2014 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the environment, aerosol particles can affect climate directly though scattering and absorbing radiation and indirectly by influencing cloud formation, albedo, and lifetime. Beyond the environment, aerosols are commonly used as a delivery mechanism for a variety of products, such as inhalers and spray paints. Chemically characterizing aerosols is a difficult endeavor, and relatively few instrumental methods are capable of doing so. A unique subset of instrumentation and techniques exist to measure aerosol chemical and physical properties. Among these, the aerosol time-of-flight mass spectrometer (ATOFMS) can measure single particle chemistry and size in real time. The ATOFMS was developed for the study atmospheric aerosols, and data acquired by the ATOFMS over the years since its creation has provided significant insight into many atmospheric phenomena; however, the application of this technique into disciplines other than atmospheric chemistry has been relatively unexplored. In this dissertation the ATOFMS is used in a conventional sense, to provide insight into atmospheric particle chemistry through two field studies in California, but also in an unconventional way by using the ATOFMS to answer outstanding questions in other disciplines, including nanomaterials and biochemistry. Often the chemistry of a single unit, rather than of the bulk, is needed in these disciplines, and the ATOFMS is uniquely suited to provide this information. The ATOFMS was used to chemically characterize single particles of a unique class of nanomaterials, called metal organic frameworks (MOFs), comprised of functionalized organic linkers and metal ions or metal ion clusters. ATOFMS data was able to show the presence of MOFs with mixed functionality, and show the exchange of functional groups between materials. Cell processes can be monitored by measuring small molecules that are part of cell metabolism, which can provide insight into cell functions, environment, and disease. Using an ATOFMS with a modified aerodynamic lens inlet, single microalgae cells 4-10 μm in diameter of various types have been be characterized. Compared to other single cell mass spectrometry techniques, the modified ATOFMS has unprecedented throughput, up to 50 Hz. Time-resolved measurements of cells undergoing nitrogen deprivation further highlight the abilities of the technique for single cell analysis.

Download or read book Laser Time of flight Mass Spectrometry of Arsenic Compounds Chromium Compounds and Polycyclic Aromatic Hydrocarbons in Airborne Particulate Matter written by Catherine Hayes Smith and published by . This book was released on 1993 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamental Studies of Matrix assisted Laser Desorption ionization Time of flight Mass Spectrometry MALDI TOF MS and Its Applications to the Analysis of Biological Materials written by Yongdong Zhu and published by . This book was released on 1999 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Quantitative Aspects of Matrix assisted Laser Desorption ionization Time of flight Mass Spectrometry written by Russell R. Hensel and published by . This book was released on 1996 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Application of Two step Laser Desorption multiphoton Ionization Mass Spectrometry written by Jong Hoon Hahn and published by . This book was released on 1988 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of a High resolution Time of flight Mass Spectrometer and a Laser Desorption Apparatus for Single conformation Spectroscopy in a Molecular Beam written by Laura J. Wollny and published by . This book was released on 19?? with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observation of 2 1 Charge Transfer in a TOF Mass Spectrometer written by W. W. Hunt and published by . This book was released on 1964 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The drift tube of a time-of-flight mass spectrometer has been adapted to serve as a reaction/collision chamber for studying ion dissociation reactions and charge-changing collisions. The methods for identifying the products of such processes depend on shifts in flight times produced by symmetric potential barriers, and are normally used in studying processes in which the mass-to-charge ratio (m/q) of the charged product particle is less than that of its parent. Processes in which the m/q of a charged product is greater than that of its parent represent an interesting special case, since the behavior of the product particle is quite different from that normally encountered. To illustrate this behavior, experimental observations of the 2, 1 charge transfer process N2(++) + N2O = N2(+) + N2O(+) at 6000 ev are presented. (Author).