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Compact reactive phosphate monitor

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article image Reference calibrations can be easily configured.

THE new Ecotech compact reactive phosphate monitor was originally developed by Monash University, but has now been redesigned and commercialised under licence by Ecotech.

The monitor is designed to provide a very low detection limit and a rapid response for filterable reactive phosphate.

Conductivity and temperature are also measured and salinity is automatically calculated. This is useful in determining the health and viability of surface waters -- lakes, rivers, etc.

The analyser achieves a very high sensitivity with detection limits for reactive phosphate of less than 1µg/L and a typical response time per measurement of only 20 seconds. This is due to the use of rapid sequenced reagent injection in combination with, a multi-reflection flow cell.

Due to the use of reagent injection, reagent use is minimised with over 1000 measurements performed using only 20ml of reagent. Automatic reference calibrations can be easily configured providing a very high level of reliability.

There are two models available. The Rapid Spatial Monitor is lightweight, rugged, portable, and incorporates a global positioning system. A popular application for this monitor has included plume mapping of waters from research vessels.

The other model available is a Permanent Monitor this is suitable for fixed-point deployment for catchment, stream, river or waste outfall monitoring. When combined with discharge data, on-line measurements of concentration can be used to provide frequent on line nutrient load determinations.

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