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Different Mechanisms of Negative Ion Formation Observed with Chlorophyll-a

  • W. Tuszynski
  • R. Angermann
  • F. Hillmann
  • K. Maier-Schwartz
Part of the NATO ASI Series book series (NSSB, volume 269)

Abstract

Negative ion spectra of chlorophyll-a dissolved in polar or nonpolar solvents have been made by 252-Cf-PDMS using nitrocellulose or uncoated aluminized polyester as supporting substrate. These spectra clearly show that the negative ion formation of chlorophyll-a is strongly dependent on the substrate and also on the aggregation if using nitrocellulose.

Keywords

Supporting Substrate Mass Figure Optical Diffuse Reflectance Suitable Sample Preparation Optical Diffuse Reflectance Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    R. D. Macfarlane, B. Wolf and D. Bunk, in: “Mass Spectrometry of Large Non-Volatile Molecules for Marine Organic Chemistry”, ed. E. Hilf and W. Tuszynski, World Scientific, Singapore (1990), p. 10.Google Scholar
  2. 2.
    P.Roepstorff, as cited above, p. 23.Google Scholar
  3. 3.
    C. McNeal, as cited above, p. 51.Google Scholar
  4. 4.
    M. Karas and F. Hillenkamp, as cited above, p. 103.Google Scholar
  5. 5.
    W. Tuszynski, R. Angermann, F. Hillmann and K. Maier-Schwartz, as cited above, p. 131.Google Scholar
  6. 6.
    W. Tuszynski, R. Angermann, F. Hillmann and K. Maier-Schwartz, in: “Ion Formation from Organic Solids, IFOS V”, ed. A. Hedin, B. U. R. Sundqvist and A. Benninghoven, J.Wiley & Sons, Chichester (1990), p. 73.Google Scholar
  7. 7.
    B. T. Chait and F. H. Field, J. Am. Chem. Soc. 104, (1982) 5519,CrossRefGoogle Scholar
  8. 8.
    J. E. Hunt, P. M. Schaber, T. J. Michalski, R. C. Dougherty and J. J. Katz, Int. J. Mass Spectrom. Ion Phys. 53, (1983) 45.ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • W. Tuszynski
    • 1
  • R. Angermann
    • 1
  • F. Hillmann
    • 1
  • K. Maier-Schwartz
    • 1
  1. 1.Department of PhysicsUniversity OldenburgOldenburgGermany

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