GB7467-87 Water Quality Determination of Hexavalent Chromium Diphenylcarboyl Hydrazine Spectrophotometry].
In an acidic solution, hexavalent chromium reacts with diphenylcarboyldihydrine to form a purplish-red compound, which is spectrophotometrically measured at a wavelength of 540 nm.
Features:
Fully compliant with standard methods
Methodological standards
Completely consistent with classical standard methods: consistent sample volume, consistent reagent volume, consistent detection method.
Fully automatic, intelligent, and more efficient
Fully automatic and intelligent operation
It can be automatically sampling, automatic addition of reagents, automatic measurement, automatic dilution, and the whole process does not require manual participation.
It's easy to use
One-click operation, simplifying the operation process and making the interaction more friendly.
Remote monitoring
The mobile phone can view the measurement process and results at any time, and people can monitor the working status of the instrument and control the instrument anywhere.
Security is more convenient
Keep away from poison
Avoid contact with harmful substances, the operation process is closed, do not contact the reagent, and the waste liquid is automatically collected.
Application scenarios
It can be used to determine the concentration of hexavalent chromium in surface water and industrial wastewater.
It can be used for all enterprises, businesses, schools and other departments that need to test the concentration of hexavalent chromium in water.
Technical features
Sample information
Number of samples: 25-position injector.
Instrument performance
Measurement method: diphenylcarboyl dihydrazine spectrophotometry.
Fully in line with the national standard: the sampling volume is consistent, the reagent volume is consistent, and the measurement method is consistent.
Injection method: Disc injection.
Automatic measurement: automatic reagent addition, automatic mixing, automatic timing colorimetry, automatic measurement, automatic dilution.
Reagent metering: precision syringes.
Measuring range: 0004~1.0mg/l
Measurement time: 40 minutes for a batch of samples.
Waste liquid**: The whole process is closed structure, and the waste liquid is automatically collected.
Curves: The instrument can be automatically calibrated, measured and plotted automatically.
Remote monitoring: mobile phone remote operation instrument monitoring and retrieval data.