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Gas chromatography mass spectrometry (GC–MS) is routinely employed to analyze small molecules in various samples. The more challenge of GC–MS data processing is to identify the unknown compounds in samples. Mass spectra and retention indices library searching are commonly used method. However, the current libraries are often built through collecting data from different groups. To unknown compounds...
The similarities and differences of essential oil components in Pericarpium Citri Reticulatae Viride (PCRV) and Pericarpium Citri Reticulatae (PCR) were investigated by GC–MS combined with a chemometric method, named alternative moving window factor analysis (AMWFA). Furthermore, temperature-programmed retention indices (PTRIs) were used together with mass spectra for identification of the essential...
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