Laser induced phosphorescence uranium analysis

Bushaw, Bruce A

Title: Laser induced phosphorescence uranium analysis

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Abstract

A method is described for measuring the uranium content of aqueous solutions wherein a uranyl phosphate complex is irradiated with a 5 nanosecond pulse of 425 nanometer laser light and resultant 520 nanometer emissions are observed for a period of 50 to 400 microseconds after the pulse. Plotting the natural logarithm of emission intensity as a function of time yields an intercept value which is proportional to uranium concentration.

Inventors:

Bushaw, Bruce A ^[1]

Kennewick, WA

Issue Date:: 1986-01-01

Research Org.:: Battelle Memorial Institute, Columbus, OH (United States)

OSTI Identifier:: 865915

Patent Number(s):: 4599512

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N21/6408 - {with measurement of decay time, time resolved fluorescence}

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DOE Contract Number:: AC06-76RL01830

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: laser; induced; phosphorescence; uranium; analysis; method; described; measuring; content; aqueous; solutions; uranyl; phosphate; complex; irradiated; nanosecond; pulse; 425; nanometer; light; resultant; 520; emissions; observed; period; 50; 400; microseconds; plotting; natural; logarithm; emission; intensity; function; time; yields; intercept; value; proportional; concentration; uranium content; aqueous solution; laser light; aqueous solutions; laser induced; emission intensity; /250/356/

Citation Formats


                    Bushaw, Bruce A. Laser induced phosphorescence uranium analysis.  United States: N. p., 1986. 
        Web.

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                    Bushaw, Bruce A. Laser induced phosphorescence uranium analysis.  United States.

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                    Bushaw, Bruce A. Wed .  
        "Laser induced phosphorescence uranium analysis".  United States.  https://www.osti.gov/servlets/purl/865915.

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@article{osti_865915,

  title        = {Laser induced phosphorescence uranium analysis},

  author       = {Bushaw, Bruce A},

  abstractNote = {A method is described for measuring the uranium content of aqueous solutions wherein a uranyl phosphate complex is irradiated with a 5 nanosecond pulse of 425 nanometer laser light and resultant 520 nanometer emissions are observed for a period of 50 to 400 microseconds after the pulse. Plotting the natural logarithm of emission intensity as a function of time yields an intercept value which is proportional to uranium concentration.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1986},

  month        = {1}

}

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Laser induced phosphorescence uranium analysis

Patent Bushaw, B A

A method is described for measuring the uranium content of aqueous solutions wherein a uranyl phosphate complex is irradiated with a 5 nanosecond pulse of 425 nanometer laser light and resultant 520 nanometer emissions are observed for a period of 50 to 400 microseconds after the pulse. Plotting the natural logarithm of emission intensity as a function of time yields an intercept value which is proportional to uranium concentration.

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