Dual-Energy X-Ray Absorptiometry Analysis for the Determination of Moisture Content in Biomass

Sammanfattning

The aim of the present study was to describe and validate a novel method able to fast, accurately and with a high precision determine the moisture content of biological materials ranging 10% to 70%. A calibrated Dual X-ray photon absorptiometry technique is validated against moisture content in wood chips. Conventional criteria such as the Pearson correlation coefficient, the root mean square errors of calibration and coefficient of variation were used for the evaluation of the method. The method is independent of the thickness and density of the object but dependent of the effective atomic number of the material. The results shows that this photon absorptiometric method gives accurate (<2%) and precise (<1%) results for moisture content determination in wood chips.

Nyckelord

Moisture Content; Photon Absorptiometry; Gravimetric Method; Dual Energy X-Ray Absorptiometry; Spruce Chips; Pine Chips

Publicerad i

Journal of Biobased Materials and Bioenergy
2010, volym: 4, nummer: 4, sidor: 363-366
Utgivare: AMER SCIENTIFIC PUBLISHERS

SLU författare

• Hultnäs, Mikael

  • Institutionen för skogens produkter, Sveriges lantbruksuniversitet
    

• Cano, Víctor Fernández

  • Institutionen för skogens produkter, Sveriges lantbruksuniversitet
    

• Nylinder, Mats

  • Institutionen för skogens produkter, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Bioenergi
Skogsvetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1166/jbmb.2010.1101

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/59830