| Abstract: | SUMMARY. The preliminary results show that IC is a very useful tool for the study and control of aqueous treatments of paper. With this method one can follow the removal of sulphates and other ions from paper into water used for washing. Also the changes in ion concentrations (ion take up and wash out) in treatment solutions, used for stabilisation and neutralisation, can be examined. With IC (cither anionic or cationic), can achieved low detection limits and low sample consumption: typical sample volume is 20 ul (even smaller samples are possible). Repeatability, resolution, as well as linearity of calibration are unique for each cation and anion. The method was statistically evaluated.14 There are also many Chromatographie parameters: dead volume, retention times, net retention times, standard deviation of peaks of individual components, selectivity (the separation efficiency of Chromatographie system), which need to be controlled before using IC routinely. Anyhow, even routine analyses must be made under the control of a chemist. |
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