36 R.A. Hashmonay et al.
completed runs (four 5-beam configurations and four 3-beam configurations, with
the three recommended dwelling times of 10 s, 30 s, and 60 s on each mirror).
A detailed description of the VRPM is in preparation for peer-reviewed publica-
tion (Hashmonay et al. 2007). Validation data for the 1D-RPM methodology is
reported in Hashmonay and Yost (1999b).
The choice of PI-ORS system to be used for the collection of measurement data
(and subsequent calculation of PIC) is left to the discretion of the user, and should
be dependent on the compounds of interest and the purpose of the study. Basic
knowledge of a PI-ORS system and the ability to obtain quality PIC data is
assumed. The user must be capable of using commercial software to utilize the
RPM-related procedures and algorithms explained in this methodology.
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