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The Adsorption Effect of Filter Paper on the Results of Trace Analysis  

Lim, Heon-Sung (Chemical Analysis Laboratory, Korea Research Institute of Chemical Technology)
Lee, Sueg-Geun (Chemical Analysis Laboratory, Korea Research Institute of Chemical Technology)
Publication Information
Analytical Science and Technology / v.17, no.1, 2004 , pp. 82-84 More about this Journal
Abstract
The quantitative trace analysis of ions could be deteriorated by filter papers because of the effect of adsorption. Generally the adsorption of anions on filter paper did not occurred. Instead, $Cl^-$ and $NO{_3}^-$ ions were extracted from the filter papers. However, most metal ions were adsorbed on the filter papers by the formation of hydroxide in neutral solution. The adsorption of metal ions except $Ag^+$ ion could be avoided depend on the acid concentrations.
Keywords
filter paper; anions; metal ions;
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