Evaluation of FTIR-based analytical methods for the analysis of simulated wastes

Technical Report · Fri Sep 30 04:00:00 EDT 1994

DOI:https://doi.org/10.2172/10189348· OSTI ID:10189348

Rebagay, T V; Cash, R J; Dodd, D A; Lockrem, L L; Meacham, J E; Winkelman, W D

Three FTIR-based analytical methods that have potential to characterize simulated waste tank materials have been evaluated. These include: (1) fiber optics, (2) modular transfer optic using light guides equipped with non-contact sampling peripherals, and (3) photoacoustic spectroscopy. Pertinent instrumentation and experimental procedures for each method are described. The results show that the near-infrared (NIR) region of the infrared spectrum is the region of choice for the measurement of moisture in waste simulants. Differentiation of the NIR spectrum, as a preprocessing steps, will improve the analytical result. Preliminary data indicate that prominent combination bands of water and the first overtone band of the ferrocyanide stretching vibration may be utilized to measure water and ferrocyanide species simultaneously. Both near-infrared and mid-infrared spectra must be collected, however, to measure ferrocyanide species unambiguously and accurately. For ease of sample handling and the potential for field or waste tank deployment, the FTIR-Fiber Optic method is preferred over the other two methods. Modular transfer optic using light guides and photoacoustic spectroscopy may be used as backup systems and for the validation of the fiber optic data.

• Research Organization: Westinghouse Hanford Co., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 10189348
• Report Number(s): WHC-SD-WM-TI--664; ON: DE95001377; BR: 35AF11201/35AF11202
• Country of Publication: United States
• Language: English

Related Subjects

052000
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102
CHEMICAL ANALYSIS
CHEMICAL AND SPECTRAL PROCEDURES
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
FERROCYANIDES
FOURIER TRANSFORM SPECTROMETERS
FOURIER TRANSFORMATION
HANFORD RESERVATION
INTERMEDIATE INFRARED RADIATION
NEAR INFRARED RADIATION
PERFORMANCE
QUANTITATIVE CHEMICAL ANALYSIS
RADIOACTIVE WASTE STORAGE
RADIOACTIVE WASTES
WASTE MANAGEMENT