1)
*It should react specifically or at least selectively with the analyte.
*They should only react with a single chemical species.
2)
*should be easily filtered and washed free of contaminants.
*should be of low solubility.
*should be atmospherically stable.
*should have a lone chemical composition after it is dried.
Henry97 answered the question on November 10, 2017 at 19:55
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