Automatic Determination of Uranium in Process Streams

Bertram, H. W.; Lerner, M.W.; Petretic, G.J.; Roszkowski, E. S.; Rodden, C.J.

doi:10.1021/ac60135a012

Cited by 13 publications

(6 citation statements)

References 5 publications

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“…A cell and apparatus for automatic sampling and analysis of radioactive streams were described recently (4). A somewhat similar system involving a proportioning pump for automatic sampling of process streams has also been proposed (21).…”

Section: Polarographymentioning

confidence: 99%

Polarographic Theory, Instrumentation, and Methodology

Hume¹

1960

Anal. Chem.

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Section: Polarographymentioning

confidence: 99%

Polarographic Theory, Instrumentation, and Methodology

Hume¹

1960

Anal. Chem.

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“…A modification of this method had been used earlier by Lewis and Overton (S) for the determination of uranium. Rodden and coworkers published a semicontinuous automatic method for the determination of uranium in process streams, with derivative polarography (1). Sampling, dilution, deaeration, and current measurement were completely automatic.…”

Section: Geeat Advantages Accruementioning

confidence: 99%

“…Abscissas are given as volumes of eluent solutions, but are also proportional to time. Total time of record is about 31…”

mentioning

confidence: 99%

Continuous Deaeration and Polarograpic Analysis of Column Effluents

Blaedel¹,

Todd²

1958

Anal. Chem.

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“…Chemical processing plants separating or purifying uranium by solvent extraction must keep the uranium content of primary waste streams to a minimum. The long-standing practice of periodically taking a sample and sending it to the laboratory for chemical analysis is not sufficient for a continuous 1 Present address, General Engineering Laboratories, General Electric Co., Schenectady, N. Y. process. A plant stream analyzer is necessary if high wraste losses, rewrork volumes, and essential materials are to be kept to a minimum.…”

mentioning

confidence: 99%

“…The difference in current flow between the two cells is a measure of the uranium concentration. Bertram and coworkers (1) recently reported an automatic derivative polarograph which determines high concentrations of uranium in a process stream. A sample from the process stream is diluted with a suitable supporting electrolyte to bring the uranium concentration within the range of the polarograph, and to dilute out interferences.…”

mentioning

confidence: 99%

Plant-Type Polarographic System for Determining Uranium in Radioactive Waste Streams

Alkire¹,

Koyama²,

Hahn³

et al. 1958

Anal. Chem.

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cobalt, gallium, and tin, it has an advantage over the carrier distillation procedure, because certain elements forming highly refractive oxides, such as the rare earths, can be determined with a high degree of sensitivity.The simplicity of the ion exchange procedure makes it ideal for spectrographic purposes because the elemental contamination can be held to very low levels. The manipulations can be easily carried out in a glove box. The number of additives is held to a minimum.The visual comparison procedures used in the preceding work have already provided valuable information and were adequate for the present application. The desirability of extending the usefulness of the method through the increased accuracy of densitometric procedures is also recognized. These procedures have been applied and are being prepared for publication.It appears entirely possible to develop a method for plutonium using nitric acid exclusively except for the initial dissolution.However, hydrochloric acid prepared as described above had smaller amounts of the common impurities, such as calcium, magnesium, sodium, aluminum, and boron, than the nitric acid used. Consequently, hydrochloric acid was preferred for the determination of these elements. Furthermore, the division of the sample into hydrochloric and nitric acid fractions reduces the possibility of matrix effects in the excitation of an impure sample.In specific instances the ion exchange technique used in conjunction with conventional spectrographic methods may provide the means of extending the concentrational limits of detection another order of magnitude. ACKNOWLEDGMENTThe authors wish to express their appreciation to D. C. Stewart and . H. Studier for helpful discussions during the course of this work. They are also grateful to J. A. Goleb for the carrier distillation results of Table I. This paper is based on work performed under the auspices of the U. S. Atomic Energy Commission.

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Automatic Determination of Uranium in Process Streams

Abstract: could become, a solution O.lOflf in lead ion and 5.00 X 10~6M in cadmium ion was run to determine the height of the cadmium peak. The resolution gave a separate cadmium peak which permitted the calculation of the cadmium ion Analyst 81, 506 (1956).

Cited by 13 publications

References 5 publications

Polarographic Theory, Instrumentation, and Methodology

Polarographic Theory, Instrumentation, and Methodology

Continuous Deaeration and Polarograpic Analysis of Column Effluents

Plant-Type Polarographic System for Determining Uranium in Radioactive Waste Streams

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