ABSTRACT
This chapter discusses the knowledge concerning: the principles of analysis using a reactive polymer or some other sorbent as a direct medium for microdetection. And further the state of analyte-reagent system in solution compared to the state in the presence of a few resin beads or finely divided ion exchanger suspension, and the sytems applied to quantitative analysis by solid-state spectrometry. Due to the relatively stable and reproducible coloration on the resin beads, such a test can be used for semiquantitative analysis of zirconium. Generally, the most promising way to prepare ion-exchange resins with selective groups is to use a given macromolecular resin and to introduce the selective anchor groups by simple reactions (polycondensation). Such relatively new exchange media also appear applicable in the microanalysis. Some organic reagents are considered not to possess any affinity for the resins. Inorganic anions, which give either complex ions or precipitates, must be detected using the ion-exchange resins loaded with colored metal chelates.
