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epub Mass spectra of organic compounds download

  • ISBN: 0643002723
  • ePub ver: 1970 kb
  • Fb2 ver: 1970 kb
  • Rating: 4.6 of 5
  • Publisher: CSIRO (1977)
  • Formats: mbr azw mobi docx
  • Category: No category
epub Mass spectra of organic compounds download

Computerization of mass spectral data is also discussed. Appendix I n References for Some Organic and Related Compounds. Organization of the Index. Appendix II Interpretation Maps.

Computerization of mass spectral data is also discussed. This book consists of nine chapters and begins with a historical overview of mass spectrometry and a discussion on some important developments in the field, along with a summary of interpretation objectives and methods. The following chapters focus on instruments, ion sources, and detectors; recording of the mass spectrum and the instrumental and sample variables affecting the mass spectrum; sample introduction systems; and fragmentation reactions.

This book consists of nine chapters and begins with a historical overview of mass spectrometry and a discussion on some important developments in the field, along with a summary of interpretation objectives and methods

This book consists of nine chapters and begins with a historical overview of mass spectrometry and a discussion on some important developments in the field, along with a summary of interpretation objectives and methods.

Mass spectral interpretation is the method employed to identify the chemical formula, characteristic fragment patterns and possible fragment ions from the mass spectra. Mass spectra is a plot of relative abundance against mass-to-charge ratio

Mass spectral interpretation is the method employed to identify the chemical formula, characteristic fragment patterns and possible fragment ions from the mass spectra. Mass spectra is a plot of relative abundance against mass-to-charge ratio. It is commonly used for the identification of organic compounds from electron ionization mass spectrometry. Organic chemists obtain mass spectra of chemical compounds as part of structure elucidation and the analysis is part of many organic chemistry curricula.

Molecular mass of organic compounds are even, except for those containing an odd number of nitrogen atoms. Mass spectra provide data for structural assessments, fragmentation being performed by semi-empirical rules serving to the study of unknown compounds. When a compound is nitrogen-free, but an odd mass corresponds to the last peak, this is definitely not the molecular peak. The rule may be extended to fragmentation ions as well. The identified molecular ion must correspond to spectrum ions produced by loss of fragments. High intensity of the molecular ion indicates stable molecular structure.

The collection contains 37,055 mass spectra of physiologically active organic compounds. The data resulted from quality control in combinatorial synthesis and cover a wide range of compound classes. Additional information: Chemical structure Chemical name Molecular formula Molecular weight (Nominal mass) Base peak Reference Measurement condition Availability: SpecInfo Data The collection contains 37,055 mass spectra of physiologically active organic compounds.

However we request visitors to our database not to download more than 50 spectra and/or compound . If more spectra are required for some specific purpose or commercial use, you should consult us and describe the intended usage or purpose of our SDBS.

If more spectra are required for some specific purpose or commercial use, you should consult us and describe the intended usage or purpose of our SDBS.

All organic molecules have different mass spectra .

All organic molecules have different mass spectra, owing to varying fragmentation, allowing analysis of them to help identify them. Another quirk of mass spectra is the results we get when we have atoms of elements with isotopes of varying abundance. An isotope is an atom of an element which differs only in the number of neutrons its nucleus contains.

This book is required for my Organic Spectroscopy class. I've only been working with the Mass Spec chapter so far, but it provides a lot of good information on interpreting EI spectra, and some on CI spectra as well.

Organic Structures from Spectra. ionization processes . instrumentation . mass spectral data . representation of fragmentation processes . factors governing fragmentation processes . examples of common types of fragmentation. organic structures from spectra . the analysis of mixtures . problems in 2-DIMENSIONAL NMR . NMR spectral analysis.


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