The method may comprise obtaining and/or pre-processing and/or analysing one or more sample spectra for a sample using a second mode of operation.
A mode of operation may comprise one or more of: (i) mass, mass to charge ratio and/or ion mobility spectrometry; (ii) spectroscopy, including Raman and/or Infra-Red (IR) spectroscopy; and (iii) Radio-Frequency (RF) impedance ultrasound.
As discussed above, the one or more sample spectra may be obtained using a sampling device. In these embodiments, the mode of operation may be selected and/or changed while the sampling device remains in use.
The method may comprise using a first mode of operation to provide a first classification for a particular target and/or subject, and using a second different mode of operation to provide a second classification for the same particular target and/or subject.
Using first and second modes of operation to obtain first and second classifications for a particular target and/or subject can reduce or resolve ambiguity in one or more sample spectra classifications, provide one or more sample spectra sub-classifications, and/or provide confirmation of one or more sample spectra classifications. Using first and second modes of operation to obtain first and second classifications for a particular target and/or subject can also facilitate accurate classification of a sample, for example by appropriately changing the mode of operation so as to improve the quality, e.g., peak strength, signal to noise, etc., in the sample spectra and/or improve the relevancy or accuracy of the classification. These embodiments are, therefore, particularly advantageous.
The first mode of operation may be used before or after or at substantially the same time as the second mode of operation.