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AMI Hydrazine
Instrument Setup
4.5.
Correction of Hydrazine Sensor
If necessary, correct the instrument after at least 30 min running-in.
To correct the instrument the concentration of hydrazine in the sam-
ple has to be known. Hydrazine reacts with dimethylaminobenzal-
dehyde in an acid solution and forms a yellow color. The color
intensity can be measured by a photometer. Refer to an appropri-
ate standard method (e.g. DIN 38413).
The manual sample must be taken from the grab sample outlet of
the flow cell. Let the sample flow out for roughly 1 minute before
grabbing the sample for the manual analysis.
See