The sugar spectra was measured with an AvaSphere-50-LS-Hal and an AvaSpec-NIR256-2.5-HSC. The sphere is positioned with the port facing up and the vials of sugar were positioned onto the port of the sphere (after taking a reference with a WS-2).
The test system included:
Wavelength Rage: 1000-2500 nm
Spectra for various sugars was collected: