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
Spectrophotometric determination of chromium(VI) by extraction of benzyltributylammonium dichromate
โ Scribed by D. Thorburn Burns; M. Harriott; S.A. Barakat
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 258 KB
- Volume
- 259
- Category
- Article
- ISSN
- 0003-2670
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โฆ Synopsis
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 SpectrophotometIy, Benzyltnbutylammomum dlchromate extraction, Chrommm
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A flow-injection manifold has been developed for the spectrophotometric determination of manganese(VII) at 548 nm after extraction into chloroform of the ion-associate, benzyltributylammonium permanganate. The carrier stream was a pH 6 buffer containing 10% (w/v) ammonium fluoride and the reagent st
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