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Force and mechanical measuring equipment
– Reagents for measuring total Chromium and Chromium (VI) from 0 to 1000 μg/L
– Use with HI833xx and HI801 meters
– By method Diphenylcarbazide method @525 nm
– Supplied with MSDS
– Printed with batch number and expiration date
PRINCIPLE
Chromium in the sample is oxidized to Chromium (VI) during digestion. Chromium (VI) reacts with Diphenylcarbazide to produce a red color in the sample, the intensity of which is proportional to the amount of Chromium present in the sample. The method is highly dependent on temperature and pH. The sample temperature should be between 18 and 22°C and the pH between 3 and 9.
Chromium (III) is an essential element for humans and can be metabolized in the body. Chromium (III) is found naturally in fruits, vegetables, meats, and grains. Chromium (VI) has been identified as a carcinogen and can cause genetic changes. Chromium (VI) is released from steel and paper mills or through the oxidation of Chromium (III). Chromium (VI) has been a regulated drinking water contaminant since the 1940s, with the US EPA only regulating total Chromium.
SPECIFICATIONS
|
The scale |
0 to 1000 μg/L (Cr) |
|
Resolution |
1 μg/L |
|
Accuracy |
±10 μg/L ± 3% measurement results |
|
Wavelength |
LED @ 525 nm |
|
Measurement methods |
Adaptation of the Standard Methods of the Examination of Water and Wastewater, 22nd Edition, 3500-Cr, Diphenylcarbazide method |
|
Using |
Follow the instructions for use of the respective HANNA meter |
|
Methods of preservation |
– After use, cover and store at room temperature, away from direct sunlight. – Do not dilute or add any chemicals to the solution. – Always use fresh reagents for each measurement. – ABSOLUTELY do not pour used solution back into the bottle. |
|
Used for measuring machines |
– Benchtop photometer HI83399 and HI83314 – HI801 spectrophotometer |
|
MSDS |
Have |
|
Guarantee |
No. Shelf life is at least 1 year. |
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment