Press Release:
Spectral reflectance measurements to estimate cellulose content with a field spectroradiometer

Lawrence, MA – April 27, 2017 – Determination of cellulose content in plants or biomass can provide critical information on plant health or biomass characteristics. An NIR field spectroradiometer like the PSR+™ or RS-3500 can measure cellulose fast, with no sample prep, non-destructively in the field.

Determination of cellulose content is traditionally done with time-consuming and costly wet chemistry. With a PSR+ or RS-3500, the process begins with scans of the plant or biomass material. NIR analysis for cellulose relies on absorption features created by chemical bonds that include C-O, O-H, C-H, and N-H . Common absorption peaks indicating cellulose in a PSR+ or RS-3500 spectra from 350-2500nm can include the following:

• A broad absorption peak at around 1216nm from C-H stretching
• Several possible features around 1490nm—O-H stretching
• Features between 1620 and 1780 nm attributable to O-H stretching
• Feature around 1920-1930nm from O-H an C-O groups
• Feature at 2100-2110nm is from O-H and C-H stretching
• Feature at 2270-2272nm is from O-H and C-O
• Feature at 2336 belongs to C-H stretching

The PSR+ and RS-3500 are both portable full range, UV-VIS-NIR instruments with high resolution and low noise. DARWin™ SP Data Acquisition software includes 19 vegetation indices in a pull down menu, including the NDVI and Red/Green indices which can be used to determine the health of a plant or a canopy. The PSR+ provides the field researcher with the option of using direct attach lenses for standoff measurements or a fiberoptic cable with FOV lenses, a contact probe, sphere, pistol grip, our unique leaf clip and other accessories. The RS-3500 is equipped with a fiber optic cable and works with all our accessories including FOV lenses. Both instruments offer auto-exposure, auto-dark correction, and auto-shutter for one touch operation.

For more information:
http://www.spectralevolution.com/applications_cellulose.html

About SPECTRAL EVOLUTION
Established in 2004, SPECTRAL EVOLUTION is a leading manufacturer of laboratory and handheld portable spectrometers, spectroradiometers and spectrophotometers. SPECTRAL EVOLUTION spectrometers are used worldwide for many mission-critical lab and field applications in mining, remote
sensing, vegetative studies, ground truthing, environmental and climate studies, developing satellite calibrations, and more, due to their reliable, robust, rugged design and user-friendly one-touch features.

Press Contact
Nicolas Venjean
Marketing & Sales
978-687-1833
Nicolas.Venjean@spectralevolution.comSPECTRAL EVOLUTION
26 Parkridge Road, Suite 104
Haverhill, MA 01835 USA
www.spectralevolution.com