5 Hadamard Transform Mass Spectrometry 75
5.5 Conclusions
The work described in this paper demonstrates the successful development of
the first CIR-TOF-MS instrument for the fast monitoring of complex mixtures
of VOCs and OVOCs. The technique is highly versatile and can provide ppbV
detection sensitivities on one-minute time scales. The potential benefits of
employing the TOF-MS are considerable, with the sample matrix being probed
in more depth and detail than has been possible previously.
Work has also been taking place on the ‘next generation’ instrument, which
employs ion beam multiplexing in a Hadamard transform instrument. Encoding
the ion beam in this manner in the TOF-MS system should further improve the
instrument sensitivity by an order of magnitude.
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