Phosphate test kit for irrigation water
The orthophosphate level in mg/L (or ppm) is determined by a Colorimetric method. Ammonium molybdate and potassium antimonyl tartrate react in acid medium with orthophosphate to form a phosphomolybdate complex that is reduced to intensely coloured molybdenum blue by ascorbic acid. The colour intensity of the solution determines the phosphate concentration. Phosphates can be classified as ortho, condensed or organically bound. As with existing test kits on the market, the HANNA Phosphate Test Kit will only determine ortho phosphate levels.
Phosphates are widely introduced into the environment from such sources as agricultural fertilisers, cleaning and laundering products, boiler water conditioners and drinking water treatment aids. At high levels, phosphates stimulate the growth of photosynthetic organisms which may contribute to eutrophication of lakes, rivers and ponds. This makes it important to monitor and control phosphate discharges into the environment.
The Hanna Instruments-3833 test kit is supplied with the following;
20 mL plastic beaker, colour comparison cube and 50 packets phosphate reagent.
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