
Full text loading...
This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.
I accept this policy
Find out more here
Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.
Results of the application of the attenuated total reflection (ATR) technique in the UV-Vis wavelength range to process liquids from pulp industry are reported. The experimental set-up consists of a Xenon light source, an ATR probe, a monochromator, and a CCD detector. The technique is applied in the laboratory environment both to solutions from the pulp process and synthetic model solutions. Quantitative results are obtained when the method is used to determine lignin concentrations. However, the technique suffers from drift and a recovery problem causing reproducibility problems when applied to liquids from pulp industry. Possible reasons for the observed behavior are studied. Reproducible results are obtained by including a washing stage in the measuring sequence.