Snider Ross K
Snider Technology, Inc., Bozeman, Montana 59715,
J Am Soc Mass Spectrom. 2007 Aug;18(8):1511-5. doi: 10.1016/j.jasms.2007.05.016. Epub 2007 May 24.
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 x 10(11). 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.
本文提出了一种使用动态规划方法高效计算同位素分布中精确质量的新方法。由此产生的程序isoDalton能够生成极高的同位素分辨率,半高宽分辨率为2×10⁻¹¹就证明了这一点。这种分辨率使得即使对于大分子,也能看到同位素分布中非常精细的质量结构。由于精确质量的数量随分子大小呈指数增长,因此只保留最可能的精确质量,其数量由用户指定。