Description
The AA500 segmented flow analyzer has been developed to measure inorganic nutrients in seawater, and is used by several leading marine institutes around the world. The device is ideally suited to measure nutrients (ammonia, nitrate and phosphate) in the lower range, such as in oceanic samples. Mesocosm or aquarium studies requiring nutrient monitoring also greatly benefit from this machine.
Technical Details
Performance data in seawater*:
|
Nutrient
|
Method
|
Typical calibration range (uM)
|
Detection limit (uM)
|
|
Ammonia
|
Salicylate, detection at 660 nm
|
0.4 - 8
|
0.024
|
|
Nitrate
|
Cadmium reduction, detection at 540 nm
|
0.18 – 3.6
|
0.006
|
|
Phosphate
|
Ascorbic acid, detection at 880 nm
|
0.02 - 1
|
0.004
|
*higher calibration ranges are possible, if desired by sufficient people
Complementary Techniques
spectrophotometry, colorimetry