Analytical Suite Metadata

Barringer (surface water) FT (U)



Barringer, surface water; fission track (uranium)

General Methodology:

After determination of fluoride and pH, the remaining water in the sample bottle (about 225 ml) was acidified with 3 ml concentrated HNO3.  Two weeks after acidification, a 5 microlitre aliquot of the sample was then removed for the determination of uranium by fission track analyses.  The two week waiting period was to ensure that all precipitated uranium was redissolved.  To determine uranium, sample aliquots were placed on a polycarbonate tape and dried.  The tape was then irradiated in a nuclear reactor at McMaster University for 1 hour in a flux of 10**13 neutrons/sq. cm./sec.  The tape was subsequently etched with 25% NaOH solution and the fission tracks were counted with an optical counter fitted to a microscope.  The number of tracks was proportional to the uranium concentration.  Each tape contained its own calibration standards, blanks and sample duplicates.

Instrument: unstated

Sample material: aqueous

Sample weight: unstated


Analytical Technique:

Hierarchical classification

Technique >> Radiochemical methods >> Activation analysis >> Neutron activation >> Fission >> Fission track

Children

None


Analytical Decomposition:

Hierarchical classification

Decomposition >> None

Children

None


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  1075     U_FT  0.01

Associated Analytical Packages:

IndexPackage IDPackage Name
1  145     Barringer (URP surface water) FT(U), ISE(F), pH
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