Spectrophotometric determination of uranium(VI) with chlorophosphonazo-mN by flow injection analysis
Journal Article
·
· Analytical Letters
OSTI ID:54517
- Lanzhou Univ., Lanzhou (China)
A sensitive and selective spectrophotometric flow injection analysis (FIA) method with chlorophosphonazo-mN has been developed for the determination of uranium(VI) in standard ore samples. Most interfereing ions are effectively eliminated by the masking reagent diethylenetriaminepentaacetic acid (DTPA). In the U(VI)-chlorophosphonazo-mN system, the maximum absorption wavelength is at 680 nm and Beer`s law is obeyed in the range of 1 to 15 {mu}g {mu}l{sup -1}. The correlation coefficient of the calibration curve is. 0.9998, the sampling frequency is 60{sup -1}, and detection limit for uranium(VI) is 0.5 {mu}g mul{sup -1}.
- OSTI ID:
- 54517
- Journal Information:
- Analytical Letters, Journal Name: Analytical Letters Journal Issue: 10 Vol. 27; ISSN ANALBP; ISSN 0003-2719
- Country of Publication:
- United States
- Language:
- English
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