title: Rapid screening of wood chemical component variations using transmittance near-infrared spectroscopy.
abstract: A rapid transmittance near-infrared (NIR) spectroscopy method was developed to predict the variation in chemical composition of solid wood. The effect of sample preparation, sample quantity (single versus stacked multiple wood wafers), and NIR acquisition time on the quantification of alpha-cellulose and lignin content was investigated. Strong correlations were obtained between laboratory wet chemistry values and the NIR-predicted values. In addition to the experimental protocol and method development, improvements in calibration error associated with utilizing stacked multiple wood wafers as opposed to single wood wafers are also discussed.
authors.affiliation: Department of Wood and Paper Science, North Carolina State University, Raleigh, North Carolina 276095-8005, USA.
authors.forename: Ting-Feng
authors.initials: TF
authors.lastname: Yeh
authors.forename: Tatsuhiko
authors.initials: T
authors.lastname: Yamada
authors.forename: Ewellyn
authors.initials: E
authors.lastname: Capanema
authors.forename: Hou-Min
authors.initials: HM
authors.lastname: Chang
authors.forename: Vincent
authors.initials: V
authors.lastname: Chiang
authors.forename: John F
authors.initials: JF
authors.lastname: Kadla
mesh_terms: D002482:Cellulose / Q000032:analysis; D008031:Lignin / Q000032:analysis; D041603:Pinus taeda / Q000737:chemistry*; D032107:Populus / Q000737:chemistry*; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D014934:Wood
chemical_list: D002482:Cellulose; D008031:Lignin