Potassium ferrocyanide as a spectrophotometric reagent for the determination of uranium

Content Provider	Semantic Scholar
Author	Rizvi, G. H.
Copyright Year	1988
Abstract	Potassium ferrocyanide gives a colour reaction with U(VI), which is suitable for its determination. The complex absorbs in the wavelength range of 390–397 nm. The optimum pH range for colour development was 1.5–3.5. The molar absorptivity was found to be 4.65·103 1·mol−1·cm−1. Most of the anions up to 1000 μg did not interfere. The method was made selective by extracting U(VI) first with DOSO from the mixture of interfering cations from 1–2M HNO3 medium and then determining uranium in the back-extracted solution by developing the colour with ferrocyanide. 20 μg/10 ml of U(VI) in the final solution could be satisfactorily determined within an RSD of ±2%.
Starting Page	333
Ending Page	339
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1007/BF02041691
Volume Number	125
Alternate Webpage(s)	https://page-one.springer.com/pdf/preview/10.1007/BF02041691
Alternate Webpage(s)	https://doi.org/10.1007/BF02041691
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article