Determination of chemical changes in heat-treated wood using ATR-FTIR and FT Raman spectrometry

2017 ◽  
Vol 171 ◽  
pp. 395-400 ◽  
Author(s):  
Özlem Özgenç ◽  
Sefa Durmaz ◽  
Ismail Hakki Boyaci ◽  
Haslet Eksi-Kocak
Keyword(s):  
Treated Wood ◽  
Raman Spectrometry ◽  
Chemical Changes ◽  
Heat Treated ◽  
Ft Raman

Pharmaceutical powders analysis using FT-Raman spectrometry: Simultaneous determination of sulfathiazole and sulfanilamide

Talanta ◽  
2008 ◽  
Vol 74 (5) ◽  
pp. 1603-1607 ◽  
Author(s):  
Macarena López-Sánchez ◽  
María José Ruedas-Rama ◽  
Antonio Ruiz-Medina ◽  
Antonio Molina-Díaz ◽  
María José Ayora-Cañada
Keyword(s):  
Simultaneous Determination ◽  
Pharmaceutical Powders ◽  
Raman Spectrometry ◽  
Ft Raman

scholarly journals CHEMICAL CHANGES OF CELL WALL COMPONENTS OF HEAT-TREATED WOOD / ALTERAÇÕES QUÍMICAS DOS COMPONENTES DA PAREDE CELULAR DE MADEIRAS TRATADAS TERMICAMENTE

2020 ◽  
Vol 6 (10) ◽  
pp. 79151-79159
Author(s):  
Carolina Rodrigues Barroco ◽  
Danielle Affonso Sampaio ◽  
Renata Nunes Oliveira ◽  
Alexandre Miguel do Nascimento
Keyword(s):  
Cell Wall ◽  
Treated Wood ◽  
Chemical Changes ◽  
Cell Wall Components ◽  
Heat Treated ◽  
Wall Components

scholarly journals Artificial weathering of heat-treated pines from the Iberian peninsula

BioResources ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. 9642-9655
Author(s):  
Bruno M. Esteves ◽  
René Herrera ◽  
Jorge Santos ◽  
Luísa Carvalho ◽  
Lina Nunes ◽  
...  
Keyword(s):  
Treated Wood ◽  
Untreated Wood ◽  
Industrial Facilities ◽  
Artificial Weathering ◽  
Class D ◽  
Heat Treated ◽  
Pinus Pinaster Ait ◽  
In The Beginning ◽  
Weathering Process

Samples from the two most common pines grown in Portugal (Pinus pinaster Ait) and Spain (Pinus radiata, D. Don) were heat-treated in industrial facilities in accordance with ThermoWood ® class D. For both species, the variation in surface properties, of untreated and heat-treated wood after artificial weathering from 75 to 750 h, is presented. The analysis included the determination of color, roughness, gloss, and wettability before exposure and after each artificial weathering period. Untreated woods became darker faster, while in heat-treated woods, lightness remained approximately constant until 750 h of artificial weathering. Both untreated and heat-treated wood became more reddish in the beginning of the weathering process, turning greener for longer exposure times. Untreated woods became yellower in the beginning, turning into blueish tones later. Heat-treated wood turned slightly yellower until 750 h of weathering. Gloss decreased for untreated wood with no significant changes in heat-treated wood. Despite the changes, the gloss of both untreated and heat-treated wood converged to similar values. Roughness increased for both untreated and heat-treated woods. Artificial weathering increased the wettability of heat-treated wood.

FT–Raman spectrometry determination of Malathion in pesticide formulations

Talanta ◽  
2004 ◽  
Vol 63 (2) ◽  
pp. 345-350 ◽  
Author(s):  
Guillermo Quintás ◽  
Salvador Garrigues ◽  
Miguel de la Guardia
Keyword(s):  
Raman Spectrometry ◽  
Pesticide Formulations ◽  
Ft Raman

Chemical Characterization and Comparison of Thermally Treated Beech and Ash Wood

2008 ◽  
Vol 599 ◽  
pp. 143-158 ◽  
Author(s):  
Elisabeth Windeisen ◽  
Gerd Wegener
Keyword(s):  
Cold Water ◽  
Treated Wood ◽  
Chemical Characterization ◽  
Exchange Chromatography ◽  
Hot Water ◽  
Thermal Treatments ◽  
Heat Treated ◽  
Temperature Load ◽  
Wet Chemical

Thermal treatments of two wood species were examined. The temperature load at 200 °C on the wood causes characteristic changes in the chemical composition. The determination of specific alterations was carried out by means of suitable methods, both wet chemical and instrumental analyses. The heat treated wood specimens of beech (Fagus sylvatica) and ash (Fraxinus excelsior) were characterized by means of Carbon analysis. The samples were extracted with organic solvents, cold and hot water. The pH-values were determined in the cold water extracts. Sugar analyses were performed after hydrolysis by means of ion-exchange chromatography. Lignin analyses after thioacidolysis were carried out by means of GC and GC/MS.

scholarly journals Determination of the Surface Roughness of Heat-Treated Wood Materials Planed by the Cutters of a Horizontal Milling Machine

BioResources ◽  
2013 ◽  
Vol 8 (3) ◽  
Author(s):  
Mehmet Budakçı ◽  
Abdullah Cemil İlçe ◽  
Tuğba Gürleyen ◽  
Mustafa Utar
Keyword(s):  
Surface Roughness ◽  
Treated Wood ◽  
Milling Machine ◽  
Heat Treated

scholarly journals Determination of Screw Withdrawal Resistance of Some Heat-Treated Wood Species

2017 ◽  
Vol 68 (1) ◽  
pp. 61-68 ◽  
Author(s):  
Osman Perçin ◽  
Şekip Şadiye Yasar ◽  
Mustafa Altunok ◽  
Oğuzhan Uzun
Keyword(s):  
Wood Species ◽  
Treated Wood ◽  
Heat Treated ◽  
Screw Withdrawal
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