ChrommmWI) (O-100 pg) can be determmed spectrophotometncally at 365 nm after its extraction as benzyltributylammomum dlchromate mto chloroform The effects of aadlty, diverse ions and maskmg studies are reported The system has been apphed to the detemunatlon of chromium m steels Keywords Spectrophoto
Indirect spectrophotometric determination of chromium(VI)
โ Scribed by Khalid A. Abdullah; Younis I. Hassan; Wadala A. Bashir
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 185 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0026-265X
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Chromium(V1) (< 500 pg dichromate) can be determined spectrophotometrically at 365 nm after its extraction as protriptylinium dichromate into acetone-chloroform (l:l, v/v). The effects of acidity, diverse ions and masking studies are reported. The relative standard deviation for determination of 200
## Symons Two chrommm(V) complexes are shown to respond to the dlphenylcarbazide spectrophotometnc method for the determmatlon of chrommm(V0, but with only 60% of the efficiency of CrNI) Aclddicatlon to pH l-2 m the presence of dissolved orgamc matter results m substantial reduction of the Cr(V) m