Journal of the American Society for Mass Spectrometry

, Volume 18, Issue 8, pp 1511–1515

Efficient calculation of exact mass isotopic distributions

Articles

DOI: 10.1016/j.jasms.2007.05.016

Cite this article as:
Snider, R.K. J Am Soc Mass Spectrom (2007) 18: 1511. doi:10.1016/j.jasms.2007.05.016

Abstract

This paper presents a new method for efficiently calculating the exact masses in an isotopic distribution using a dynamic programming approach. The resulting program, isoDalton, can generate extremely high isotopic resolutions as demonstrated by a FWHM resolution of 2 × 1011. This resolution allows very fine mass structures in isotopic distributions to be seen, even for large molecules. Since the number of exact masses grows exponentially with molecular size, only the most probable exact masses are kept, the number of which is user specified.

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Supplementary material

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Copyright information

© American Society for Mass Spectrometry 2007

Authors and Affiliations

  1. 1.Technology, Inc.BozemanUSA
  2. 2.Department of Electrical and Computer EngineeringMontana State UniversityBozemanUSA