
The JAL-Z colorimeter is a compact analytical instrumentation for online analysis and process monitoring. The colorimeter is based on a color-developing chemical reaction carried out inside the analyzer's glass cell. The sample, coming from an external reservoir or process stream is autonomously grabbed by the instrument and mixed with the appropriate reagents to make the reaction happen. The analyzer uses an LED light source and a photodiode to photometrically measure the developed color intensity (absorbance). The absorbance is proportional to the concentration of the target chemical species (analite).
Hydrazine is widely used in power generation plants to remove dissolved oxygen in boiler feed water and as a corrosion inhibitor. The analyzer can be used as a process monitor or discharge limit monitor, the single reagent configuration ensure minimum operating costs.
Under acidic conditions, hydrazine reacts with p-dimethylaminobenzaldehyde to form a yellow-colored azine complex. The absorbance intensity is proportional to the hydrazine concentration in the sample and is determined at 470 nm.
Measured parameter: NH2NH2
Range :
(Ø 16 mm) 500 ppb
Reproducibility*
(Ø 16 mm) ± 1 ppb / ± 3%
* if two values take whichever is greater
Wavelength : 470 nm
Demineralized water : Not required
Number of reagents: 1
Min. analysis time : 10 minutes
Default analysis time : 15 minutes
JAL-Z_Chlorine-Colorimeter-Datasheet (pdf)
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