Low-Activity Waste Glass Standards Preparation and Characterization for Calibration of Analytical Instruments
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
A matrix of seven low-activity waste (LAW) glasses was fabricated and characterized to be used by the Hanford Waste Treatment and Immobilization Plant (WTP) as analytical instrument calibration and matrix interference standards when measuring LAW glass compositions. The matrix of glasses was designed to represent the range of LAW glass compositions that will be generated by the WTP. Samples from each of the seven glasses were measured with electron probe microanalysis (EPMA), ion chromatography (IC), and bulk inductively coupled plasma mass spectroscopy (ICP-MS) to determine the variability and accuracy across batches and within individually poured glass bar samples. High relative percent differences and standard deviations were calculated for components with low concentrations due to instrument detection limits. IC and ICP-MS percent differences and standard deviations were higher at low component concentrations. Otherwise, variability in measured compositions from IC and ICP-MS was generally lower than measurements from EPMA, with the exclusion of Cl, F, Si, and B. Overall, the two methods proved comparable and complementary. From EPMA, IC, and ICP-MS data, volatile elements were underrepresented compared to batched compositions, which suggested loss of these elements during melting. EPMA data was statistically analyzed to evaluate homogeneity within single bars and whole compositions for each of the seven glasses. Most of the variability within glass compositions occurred at the bar-to-bar level; however, no clear systematic trends were observed. Based on these analyses, when using these glasses as reference material, it is recommended that the overall mean and variance of each composition be used for performing instrument calibrations and analytical corrections.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1810475
- Report Number(s):
- PNNL-31372
- Country of Publication:
- United States
- Language:
- English
Similar Records
X-RAY FLUORESCENCE ANALYSIS OF HANFORD LOW ACTIVITY WASTE SIMULANTS
Characterization Of Nuclear Materials Using Time-Of-Flight ICP-MS
A Statistical Review of DWPF Laboratory Data Including Measurements of the ARG-1 Standard for Batches 94 - 263.
Technical Report
·
Mon May 08 00:00:00 EDT 2006
·
OSTI ID:891691
Characterization Of Nuclear Materials Using Time-Of-Flight ICP-MS
Conference
·
Sat Dec 31 23:00:00 EST 2005
·
OSTI ID:930741
A Statistical Review of DWPF Laboratory Data Including Measurements of the ARG-1 Standard for Batches 94 - 263.
Technical Report
·
Mon Nov 29 23:00:00 EST 2004
·
OSTI ID:839496