HCK Spectratest Chromates

Measurement of the color intensity of the red-violet complex formed by the reaction of hexavalent chromium with Diphenylcarbazide.

0,05 - 1,0 mg/l CrO42-

70

- Colorimetric
- Measurement with Diphenylcarbazide

Purified, waste, discharge, industrial and potable.

• 1 bottle of 0.6 g of reagent A
• 1 bottle of 30 ml of reagent B
• 1 measuring spoon n ° 1
• 2 plastic test tubes of 20 ml with stopper
• 2 test tubes of 16 mm optical glass with stopper
• 1 syringe of 5 ml
• Instructions (English)

• The method detects Cr+6. To detect Cr+3, it is necessary to determine total chromium by the photometric laboratory method (see Hydrocheck photometer manual). Cr+3 results from the difference between total chromium and Cr+6.
• The HYDROCHECK MONOTEST kits (which can be purchased directly) require the use of a photometer. Despite having a higher cost per analysis compared to SPECTRATESTs, HYDROCHECK MONOTEST kits are preferred because of their greater convenience and safety of use. The analysis with MONOTESTs is very simple because the samples to be analyzed are introduced into optical glass tubes containing the pre-dosed reagents that can be used directly in any photometer capable of accepting 16-mm diameter round tubes, such as Hydrocheck or Spectronic Genesys spectrophotometers. SPECTRATEST kits, which offer a significantly lower cost per analysis, are recommended when it is necessary to perform a number of analyses, to be repeated frequently. As for the photometer, it is preferable to use a spectrophotometer such as the Hydrocheck or Spectronic Genesys, since filter photometers give less reliable and precise results, as well as always requiring the construction of a calibration curve.

-Spectratest chrome refill (COD. n.6430) containing:
-3 bottles of chromates reagent A
-3 bottles of chromates reagent B
-10-pack of 20ml test tubes (Cod. n°3310)
-24-pack of test tubes of 16 mm optical glass (cod. n°7132)