INTRODUCTION
Accurate analysis of various complex samples (natural and waste waters, geological, biological and industrial materials, substances of high purity), especially at trace levels, is one of the most difficult and complicatedanalytical tasks.
The rapid development of electronic instrumentation has created powerful analytical tools for trace element determination. At the same time, matrix effects (which can give erroneous results) and the extent of separation chemistry in instrumental methods have become evident.1
In the last years, the importance of separation and concentration techniques involving chelating sorbents in the trace analysis has risen substantially.
Pre-treatment of an aqueous sample by the sorption technique not only increases the ion concentration to a detectable level but also eliminates matrix effects. The use of chelating sorbents can provide a concentration factor up to several hundred folds, better separation of interferent ions, high efficiency and rate of process, and the possibility of combining with different determination methods.2¿5
A chelating sorbent essentially consists of two components: the chelate forming functional group and the polymeric matrix or the support; the properties of both components determine the features and the applications of the respective material.
[PDF] Chelating Sorbents in Inorganic Chemical Analysis
Accurate analysis of various complex samples (natural and waste waters, geological, biological and industrial materials, substances of high purity), especially at trace levels, is one of the most difficult and complicatedanalytical tasks.
The rapid development of electronic instrumentation has created powerful analytical tools for trace element determination. At the same time, matrix effects (which can give erroneous results) and the extent of separation chemistry in instrumental methods have become evident.1
In the last years, the importance of separation and concentration techniques involving chelating sorbents in the trace analysis has risen substantially.
Pre-treatment of an aqueous sample by the sorption technique not only increases the ion concentration to a detectable level but also eliminates matrix effects. The use of chelating sorbents can provide a concentration factor up to several hundred folds, better separation of interferent ions, high efficiency and rate of process, and the possibility of combining with different determination methods.2¿5
A chelating sorbent essentially consists of two components: the chelate forming functional group and the polymeric matrix or the support; the properties of both components determine the features and the applications of the respective material.
[PDF] Chelating Sorbents in Inorganic Chemical Analysis
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