Determination of uranium concentration and speciation in natural granitic groundwater using TRLFS

2015 ◽  
Vol 305 (2) ◽  
pp. 589-598 ◽  
Author(s):  
M. H. Baik ◽  
E. C. Jung ◽  
J. Jeong
Keyword(s):  
Uranium Concentration ◽  
Granitic Groundwater

X-Ray Spectrometric Determination of Copper, Tin, and Uranium in Bronze Heat-Treating Material*

1960 ◽  
Vol 4 ◽  
pp. 457-473
Author(s):  
G. R. Blank ◽  
H. A. Heller
Keyword(s):  
Acid Solution ◽  
Confidence Level ◽  
Uranium Concentration ◽  
Heat Treating ◽  
Internal Standards ◽  
X Ray ◽  
First Order ◽  
Limits Of Error ◽  
Determination Of Copper

AbstractA method is presented for the X-ray spectrometric determination of copper, tin, and uranium in a bronze heat-treating material. The method is based on the irradiation of an acid solution of the sample, to which indium and zinc have been added as internal standards. Quantitative determinations of copper and tin (each in the 40 to 60% range) are calculated from the ratios of the CuKα/ZnKα and SnKα/In Kα intensities. Uranium concentration (in the 1 to 10% range) is calculated from the ratio of the ULα/ In Kα intensities, A correction for the interference of the second-order In Kβ1,3 doublet with the first-order ULα peak is described. The over-all limits of error for single determinations at the 95% confidence level are ±0,58% copper, ±0,56% tin, and ±0,31% uranium.

scholarly journals Determination of uranium concentration and burn-up of irradiated reactor fuel in contaminated areas in Belarus using uranium isotopic ratios in soil samples

2005 ◽  
Vol 93 (12) ◽  
Author(s):  
V. P. Mironov ◽  
J. L. Matusevich ◽  
V. P. Kudrjashov ◽  
P. I. Ananich ◽  
V. V. Zhuravkov ◽  
...  
Keyword(s):  
Analytical Method ◽  
Uranium Concentration ◽  
Soil Samples ◽  
Reactor Fuel ◽  
Isotopic Ratios

SummaryAn analytical method is described for the estimation of uranium concentrations, of

Synthesis of oxides and determination of uranium concentration in uranyl nitrate compounds using irradiation by double laser pulses

2011 ◽  
Vol 78 (5) ◽  
pp. 719-724 ◽  
Author(s):  
A. P. Zazhogin ◽  
D. S. Umreiko ◽  
M. P. Patapovich ◽  
A. R. Fadaiyan ◽  
A. I. Komyak ◽  
...  
Keyword(s):  
Uranyl Nitrate ◽  
Uranium Concentration ◽  
Laser Pulses

scholarly journals Speciation and spectrophotometric determination of uranium in seawater

2004 ◽  
Vol 5 (1) ◽  
pp. 55 ◽  
Author(s):  
M. KONSTANTINOU ◽  
I. PASHALIDIS
Keyword(s):  
Ion Exchange ◽  
Oxidation State ◽  
Spectrophotometric Determination ◽  
Uranium Concentration ◽  
Coastal Areas ◽  
Arsenazo Iii ◽  
Predominant Species ◽  
The Mean ◽  
Seawater Samples

A series of ion-exchange and extraction procedures for the separation of uranium from seawater samples and subsequent spectrophotometric determination of uranium in seawater by means of arsenazo(III) is described. According to the measurements performed by means of traced samples at every stage of separation, the yield of the pre-analytical procedures is generally over 90% and the separation of uranium very selective. The mean uranium concentration in seawater samples collected from five different coastal areas in Cyprus was found to be 3.2 ± 0.2 & micro; g L-1. Uranium in seawater is stable in its hexavalent oxidation state and UO2 (CO3)34- is the predominant species under normal coastal conditions (pH ≥ 8, EH ≥ 0.35 mV, 1 atm and 0.03% CO2).

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