Abstract
The analysis of multi-component gas-phase mixtures by ion mobility spectrometry with gas-chromatographic pre-separation obtains complex data. In particular, numerous compound specific signals make data interpretation challenging. Here we describe the procedure of data treatment and processing to facilitate the interpretation of such data. In detail, after data pre-processing (smoothing, baseline correction, alignment of ion mobility and retention time) and after specifying threshold values for each one of the detected signals to reduce information from signal intensities down to only presence or absence of the signals, a kind of barcode for each sample will remain. Using this “barcode” as sample description, it is possible to differentiate between different samples immediately after data acquisition. We exemplarily applied this approach for the differentiation of various banknotes of different values and from different currencies as well as of real from counterfeit money successfully.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: International Journal for Ion Mobility Spectrometry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.