
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).
The determination ranges of the aluminum analyzer vary from trace μg/L to 20 mg/L Al3+ using the (optional) internal dilution module.
In a pH 5.9 buffered solution pyrocatechol violet and Al(III) form a blue colored compound. The absorbance intensity is proportional to the aluminum concentration in the sample and is measured at 572 nm.
Measured parameter: Al3+
Range
(Ø 16 mm) 1 - 500 ppb
Reproducibility*
(Ø 16 mm) ± 2 ppb
* if two values take whichever is greater.
Limit of detection : 5 ppb
Wavelength : 572 nm
Demineralized water : Not required
Interferences : Iron, fluorides, oils and humic acids.
Reference: ISO 10566:1994
Number of reagents: 3
Min. analysis time : 25 minutes
Default analysis time : 60 minutes
Reagent consumption**
(Ø 16 mm)3 L
** per month, at the default analysis frequency.
Files coming soon.
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