By Fulton G. Kitson Barbara S. Larsen Charles N. McEwen
This advisor presents, less than one hide, a wealth of sensible info designed to facilitate the effectiveness of the GC/MS person. Separation stipulations for various compound varieties are supplied besides derivatized and underivatized compounds. a piece on the way to interpret mass spectral information, an in depth correlation of ion plenty and impartial losses with attainable buildings, and examples of mass spectra are supplied to extra reduction constitution decision. additionally incorporated are uncomplicated details on instrumentation, ionization equipment, quantitation, tips about the operation of mass spectrometers, the easiest derivatization methods for various compound kinds, troubleshooting suggestions, and quite a few different info came across to be invaluable to the practising consumer of GC/MS instrumentation. This consultant will be instantly beneficial to the amateur in addition to the skilled GC/MS person who would possibly not have the breadth of expertise coated during this e-book. Key good points* Condenses and organizes contemporary and crucial info for brand new and skilled GC/MS clients* Comprehensively listed and referenced* contains functional tools of study* Serves as a textual content reference for brief functional classes at the topic
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Extra info for Gas Chromatography and Mass Spectrometry
Klemp, M. , Akard, M. , and Sacks, R. D. Cryofocusing sample injection method. , 65, 2516, 1993. McNair, H. M. Gas chromatography. LC-GC, 11(11), 794, 1993. Mass Spectrometry Busch, K. L. Getting a charge out of mass spectrometry. Spectroscopy, 9, 12, 1994. Russell, D. , Ed. Experimental Mass Spectrometry. New York: Plenum Press 1994. Watson, J. T. Introduction to Mass Spectrometry. New York: Raven Press, 1985. What is Mass Spectrometry? The American Society for Mass Spectrometry (ASMS), 815 Don Gaspar Drive, Santa Fe, NM 87501.
40 PartI References Williams, D. , and Howe, I. Principles of Organic Mass Spectrometry. New York: McGraw-Hill, 1972. Gas Chromatography ASTM Test Methods from ASTM. ASTM, 1916 Race Street, Philadelphia, PA 19103. Eiceman, G. , Hill, H. , and Davani, B. , 66, 621R, 1994. Grob, R. L. Modern Practice of Gas Chromatography. New York: Wiley-Interscience, 1985. , and Mohnke, M. PLOT columns. American Laboratory, August, 28C, 1994. , and Sullivan, J. Atomic emission detector for GC. American Laboratory, October, 13, 1995.
Using this splitter system, it is easy to determine if the GC peak contains nitrogen. Also, the analyst can differentiate between azobenzene and benzophenone by using the methoxime derivative. Compare the Predicted Mass Spectra of the Postulated Structures with the Unknown Mass Spectrum After the possible structures are obtained, predict their mass spectra by examining the mass spectra of similar structures. Also, the GC retention time may eliminate certain structures or isomers. Discuss these results with the originator of the sample to determine the most probable structure.