No abstract

No abstract

The development and optimisation of an on-line ammonia preconcentration system, based on a recently commercialised continuous flow microstill, is described. The preconcentration system was integrated with a computer-controlled flow injection system and an ammonia gas sensing probe to form a complete potentiometric ammonia monitoring system, with a limit of detection of 5 mg l 21 NH 3 -N and a sample throughput of 10 samples per hour. Details of the optimisation process are presented, along with results of recovery experiments and selectivity data for some commonly occurring interfering amines.

No abstract

No abstract

No abstract

No abstract

No abstract