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ASTM-C1614:2010 Edition

ASTM-C1614:2010 Edition

$40.63

C1614-05(2010) Standard Practice for the Determination of 237Np, 232Th, 235U and 238U in Urine by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Gamma Ray Spectrometry.

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ASTM 2010 5
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1.1 This practice covers the separation and preconcentration of neptunium-237 ( 237 Np), thorium-232 ( 232 Th), uranium-235 ( 235 U) and uranium-238 ( 238 U) from urine followed by quantitation using ICP-MS.

1.2 This practice can be used to support routine bioassay programs. The minimum detectable concentrations (MDC) for this method, taking the preconcentration factor into account, are approximately 1E-2Bq for 237 Np (0.38ng), 2E-6Bq for 232 Th (0.50ng), 4E-5Bq for 235 U (0.50ng) and 6E-6Bq for 238 U (0.48ng).

1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
Summary of Practice
2 Significance and Use
Interferences
Apparatus
Reagents and Materials
Solutions
Sampling, Test Specimens
3 Calibration and Standardization
Procedure
Calculation of Results
4 Precision and Bias
Keywords
X1.
TABLE X1.1
5 References
TABLE X1.2

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