A post-modification approach to independent compo nent analysis for resolution of overlapping GC/MS signals : from independent components to chemical components
作者： Wei Wang , WenSheng Cai , XueGuang Shao
DOI: 10.1007/S11426-007-0065-1
关键词:
摘要: Independent component analysis (ICA) has demonstrated its power to extract mass spectra from overlapping GC/MS signal. However, there is still a problem that with negative peaks at some m/z will be obtained in the resolved results when are of mixture. Based on detail theoretical preconditions for ICA and non-negative property signals, post-modification based chemical knowledge (PMBK) strategy proposed solve this problem. By both simulated experimental it was proved PMBK can improve resolution effectively.
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