Results of The Excreta Bioassay Quality Control Program For April 1, 2008 through March 31, 2009

Antonio, Cheryl L.

Pacific Northwest National Laboratory (U.S.)

关键词: Uranium Isotopes;    Americium Isotopes;    Plutonium Isotopes;    South Carolina Excreta Bioassay;    Strontium;   

DOI  :  10.2172/1000146
RP-ID  :  PNNL-19509
RP-ID  :  AC05-76RL01830
RP-ID  :  1000146

美国|英语

来源: UNT Digital Library

【 摘 要 】

A total of 62 urine samples and 6 spiked fecal samples were submitted during the report period (April 1, 2008 through March 31, 2009) to General Engineering Laboratories, South Carolina by the Hanford Internal Dosimetry Program (IDP) to check the accuracy, precision, and detection levels of their analyses. Urine analyses for Sr, 238Pu, 239Pu, 241Am, 243Am 235U, 238U, elemental uranium and fecal analyses for 241Am, 238Pu and 239Pu were tested this year. The number of QC urine samples submitted during the report period represented 1.3% of the total samples submitted. In addition to the samples provided by IDP, GEL was also required to conduct their own QC program, and submit the results of analyses to IDP. About 34% of the analyses processed by GEL during the third year of this contract were quality control samples. GEL tested the performance of 21 radioisotopes, all of which met or exceeded the specifications in the Statement of Work within statistical uncertainty. IDP concluded that GEL was performing well for all analyses tested, and concerns identified earlier were satisfactorily resolved (see section on Follow-up on Concerns During the Fourth Contract Year).