Simultaneous X-ray diffraction and X-ray fluorescence microanalysis on secondary xylem of Norway spruce

Autor: Pekka Saranpää, Ari Salmi, Ritva Serimaa, Antti Meriläinen, Kirsi Leppänen, Marko Peura, Kari Pirkkalainen
Rok vydání: 2012
Předmět:
Zdroj: Wood Science and Technology. 46:1113-1125
ISSN: 1432-5225
0043-7719
Popis: Secondary xylem of Norway spruce was studied by X-ray microanalysis. Average dimensions of cellulose crystallites, fraction of oriented cellulose, mean microfibril angle, and nutrient element concentrations of K, Ca, Mn, and Zn were simultaneously determined using microfocused synchrotron radiation and a combination of X-ray diffraction and X-ray fluorescence spectroscopy techniques. The variation of these quantities in the microscopic size scale was noticeable, and similar between samples taken from the same annual ring. The mean microfibril angle and the nutrient concentrations of Ca, Mn, and Zn showed a correlation. The mean values of the structural parameters and their variation as a function of the annual ring were similar as reported in previous studies on Norway spruce.
Databáze: OpenAIRE