Determination of the Quantitative Share of Alkaline and Alkaline Earth Elements in Natural Cellulosic Textile Materials by Using Atom Absorption Spectrometry

Abstract

Quantitative determination of alkaline and alkaline earth metal ions in textile natural fibers is of paramount importance. Attention should be paid to the presence of calcium and magnesium in textile fibers as well as in the water used in finishing treatments. To determine small amounts of ions analytically, physico-chemical analytical methods are used, and to determine alkaline and alkaline earth ions, the method of atom absorption or emission spectrometry is recommended. Before analytical determining, it is necessary to dissolve the sample. Textile natural fibers can be destroyed by a dry or wet procedure. The wet destruction procedure is preferred, which can be carried out in the open or closed system. The optimised procedure of destroying cotton, flax and jute fibers in the closed system was examined, and the results were compared with those obtained after destroying in the closed system by microwave digestion.