ASTM C 1379 Standard Test Method for Analysis of Urine for Uranium-235 and Uranium-238 Isotopes by Inductively Coupled Plasma-Mass Spectrometry
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ASTM C 1379 Document Information:
Title
Standard Test Method for Analysis of Urine for Uranium-235 and Uranium-238 Isotopes by Inductively Coupled Plasma-Mass Spectrometry
ASTM International
Publication Date:
Jan 1, 2004
Scope:
This test method covers the determination of the concentration of
uranium-235 and uranium-238 in
urine using Inductively Coupled Plasma-Mass Spectrometry. This test
method can be used to support
uranium facility bioassay programs.
This method detection limits for 235U and 238U are 6 ng/L. To meet the
requirements of ANSI N13.30,
the minimum detectable activity (MDA) of each radionuclide measured
must be at least 0.1 pCi/L
(0.0037 Bq/L). The MDA translates to 47 ng/L for 235U and 300 ng/L for
238U. Uranium- 234 cannot be
determined at the MDA with this test method because of its low mass
concentration level equivalent
to 0.1 pCi/L.
The digestion and anion separation of urine may not be necessary when
uranium concentrations of
more than 100 ng/L are present.
This standard does not purport to address all of the safety concerns,
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.
NOTE 1 - Warning: The ICP-MS is a source of intense ultraviolet
radiation from the radio frequency
induced plasma. Protection from radio frequency radiation and UV
radiation is provided by the
instrument under normal operation.
Keywords:
- bioassay
- inductively coupled plasma-mass spectrometry
- total uranium concentration
- urine analysis
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