Concept URI | https://kodlistor.miljodatasamverkan.se/def/vocabulary/DATA_MATVARDE/ANALYS_MET/3500_Cr_B_Colorimetric_Method |
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Preferred label | 3500_Cr_B_Colorimetric_Method |
Definition | 3500-Cr B. Colorimetric Method. Standard Methods for the Examination of Water and Wastewater - This procedure measures only hexavalent chromium, (Cr6+). For total chromium determination, acid-digest the sample and follow with a suitable instrumental analysis technique. The hexavalent chromium is determined colorimetrically by reaction with diphenylcarbazide in acid solution. A red-violet colored complex of unknown composition is produced. The reaction is very sensitive |
Notation | |
Status | Valid |
Status Modified | 2021-03-15 |
Accepted Date | 2021-03-15 |
Not Accepted Date |