Flow-through sensors for multideterminations based on integrated retention and detection

5 FLOW-THROUGH SENSORS FOR MULTIDETERMINATIONS BASED ON INTEGRATED RETENTION AND DETECTION 

Sensors allowing two or more analytes to be determined by a simple procedure are technically more complex than single-parameter sensors, but also more advantageous, which justifies the R D endeavours devoted to them. Few multi-parameter sensors have so far been developed, however, and even fewer are actually operative, of which those commercially available are included. Progress in this area is therefore much needed and desired. Multideterminations based on sensors can be accomplished (a) by using a detector capable of distinguishing the signal produeed by each analyte, whether as 

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