Method for reducing frequency of taking background/reference spectra in FTIR or FTIR-ATR spectroscopy and handheld measurement device embodying same

摘要

Featured is a method for reducing frequency of taking background spectra in FTIR or FTIR-ATR spectroscopy. Such a method includes determining if there is a pre-existing reference spectrum available and if such a reference spectrum is available, acquiring a present reference scan before acquiring a sample scan. The method also includes comparing the present reference scan with the pre-existing reference spectrum to determine if there is one or more non-conformities therebetween and if there is/are one or more nonconformities, determining if the one or more non-conformities are resolvable or not. If the one or more non-conformities are resolvable; resolve each non-conformity in a determined manner and thereafter acquiring a scan of the sample, and if the non-conformities are not resolvable, then acquiring a new reference sample and thereafter acquiring a scan of the sample.

主权项

1. A method for reducing frequency of taking background spectra when using one of FTIR spectroscopy or FTIR-ATR spectroscopy techniques, said method comprising the steps of:
determining if there is a pre-existing reference spectrum available; acquiring one or more scans of a sample of interest; determining one of acceptability of the pre-existing reference spectrum or of a modified pre-existing reference spectrum either (a) before acquiring the one or more scans of the sample or (b) after acquiring the one or more scans of the sample; wherein said determining the acceptability of the pre-existing reference spectrum or of the modified pre-existing reference spectrum includes:
acquiring a present reference scan;comparing the present reference scan and the pre-existing reference spectrum to determine if there are any non-conformities there between;if one or more non-conformities are found between the present reference scan and the pre-existing reference spectrum, determining if the one or more non-conformities are resolvable or not;if the one or more non-conformities are resolvable; resolving each non-conformity in a manner determined to resolve the one or more non-conformities; andif the one or more non-conformities are not resolvable, then acquiring a new reference spectrum.