Foss NIRS DS3, Руководство пользователя

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The best choice for samples that tends to stick to the cup. Also the preferred choice
for samples warmer than 50 °C. It should only be used for homogeneous samples.
For wet, sticky or otherwise unpleasant samples. Can be used with plastic or glass
petri dishes. The absorbance spectrum of the petri dish has to be taken into account
while developing calibrations.
The gold reflector is suitable for homogeneous, fairly transparent, liquid samples.
Liquid samples should preferably be analysed at a well-defined temperature since
temperature has a large influence on the shape of the moisture spectrum. When the
sample is placed in the cup, the gold reflector is placed over the sample. The
sample will quickly heat up or cool down to the temperature of the cup and gold
reflector. Keeping the cup and reflector at the same temperature thus ensures
consistent results. Depending on the product analysed, the required path length
may vary. Available path lengths for NIRS DS3 / DS3 F are 0.1 mm, 0.2 mm and
0.5 mm.
Fig. 7 Gold reflector
A holder that allows for use of the NIRS ring cup is available. This permits
scanning of an ISI ring cup on the NIRS DS3 / DS3 F. Its primary use is for cross-
standardisation between NIR platforms.
Fig. 8 NIRS ring cup