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1. 发明申请

US20140361159A1 Isotopic Pattern Recognition 审中-公开
标题翻译：同位素模式识别
公开(公告)号：US20140361159A1
公开(公告)日：2014-12-11
申请号：US14298612
申请日：2014-06-06
申请人： THERMO FISHER SCIENTIFIC (BREMEN) GMBH
发明人： Hans PFAFF , Timothy J. STRATTON
IPC分类号： H01J49/00 , H01J49/26
CPC分类号： H01J49/0036 , H01J49/26
摘要： A measure of abundance is determined for an element or element combination within a sample, the element or element combination having at least one isotopic variant. An isotopic mass spectral pattern is identified for the element or element combination that indicates an expected abundance and expected mass-to-charge ratio difference for each isotopic variant. These are identified relative to the respective abundance and mass-to-charge ratio of a principal isotope. The isotopic mass spectral pattern is compared with mass spectral data from a molecular mass analysis of the sample to identify peak groups, each matching the isotopic mass spectral pattern. A measure of abundance is determined for the element or element combination as a function of the intensity measurement of one or more peaks from each of the identified peak groups.
摘要翻译：对样品中的元素或元素组合确定丰度的度量，元素或元素组合具有至少一种同位素变体。识别元素或元素组合的同位素质谱图，其指示每个同位素变体的预期丰度和预期的质荷比差异。这些相对于主要同位素的相应丰度和质荷比确定。将同位素质谱图与来自样品的分子质量分析的质谱数据进行比较，以鉴定峰组，每个匹配同位素质谱图。根据来自每个识别的峰组的一个或多个峰的强度测量，确定元素或元素组合的丰度度量。

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