Do you know of any material that could be used as a reference standard
for NIR transmission spectroscopy? We've considered neutral density
filters, bur really require something that gives a reproducible spectrum
(ideally both wavelength and absorbance, or one for each function).
Polystyrene doesn't cover the range we're interested in which is 1600 -
1000nm. Any ideas would be gratefully received.
Don Clark
Pfizer Central Research, Sandwich, UK.
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