Results Of The Excreta Bioassay Quality Control Program For April 1, 2007 Through March 31, 2008

Antonio, Cheryl L.

Pacific Northwest National Laboratory (U.S.)

关键词: Uranium Isotopes;    Americium Isotopes;    Urine Analyses;    Plutonium Isotopes;    Strontium Excreta Bioassay;   

DOI  :  10.2172/950185
RP-ID  :  PNNL-18156
RP-ID  :  AC05-76RL01830
RP-ID  :  950185

美国|英语

来源: UNT Digital Library

【 摘 要 】

A total of 79 urine samples, 3 blank fecal and 5 spiked artificial fecal samples were submitted during the report period (April 1, 2007 through March 31, 2008) 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 tritium, 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 1.8% 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 35% of the analyses processed by GEL during the third year of this contract were quality control samples. GEL tested the performance of 24 radioisotopes, all of which met or exceeded the specifications in the Statement of Work within statistical uncertainty (Table 4). IDP concluded that GEL was performing well for all analyses tested, and concerns identified earlier were satisfactorily resolved.