Extracted from
http://www.impublications.com/discus/messages/5/213.html?1060210133
"Then there is the detector selection. If we take the visible/NIR cutoff as where the optimum detector choice changes, it is about at 1100 nm. In the wavelength range below 1100, there is limited vibrational information available, so many scanning instruments have that as the lower end of the wavelength range. If you scan only below 1100, many of us would say you are not really doing NIR Spectroscopy, but rather visible.
For data collected in the reflection mode, the data above 1800 nm or so is of limited utility because absorptions tend to be so strong as to make quantitation in the presence of surface reflection less reliable.
So, in my experience, 1100 to 1800 nm winds up being the critical range for many analysis, and I recommend to my clients that they make sure that the instrument they buy operates reliably in this range. However, the adjoining wavelengths can add versatility that at times can be very important for specific applications.
By DJ Dahm "
"Generally, 700 -1800 nm covers almost all applications. If you are considering 700 – 1100 nm then more caution would be advised There will be some calibrations which cannot be replaced with Herschel wavelengths.
By Tony Davies (Td)"
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