Quantitative determination of total cesium in highly active liquid waste by using liquid electrode plasma optical emission spectrometry

Temporal characterization of fundamental plasma parameters in pulsed liquid electrode plasma (LEP) optical emission spectrometry

“…The error bars, which represent the standard deviations of five 258 replicate measurements, are comparatively large and the relative standard deviations range from 259 14% to 25%. Relative standard deviation between 10 to 20% had been reported by other 260 research groups [12,15] for LEP-OES. 261…”

“…As 60 such, the commercialized version of the LEP offers the option of operation with dry-cell batteries 61 [12]. Partly owing to the commercial availability of LEP-OES instruments, applications reported 62 in recent years include, for example: Na and Li in ZrO2 sample [9], Au, Pd, Pt in acidic aqueous 63 matrix [13], Cd and Pb in elemental calibrating standards [14], and Cs [15] and Tc [16] in 64 radioactive liquid waste. However, there are only limited reports about the fundamental 65 characterization of this pulsed plasma source [10,11,17].…”

An Improved Algorithm for Peak Detection Based on Weighted Continuous Wavelet Transform

“…Spectroscopy techniques, including mass spectrometry (MS), atomic absorption spectroscopy (AAS), Raman spectroscopy, laser-induced breakdown spectroscopy (LIBS), and liquid electrode glow discharge (LEGD) spectroscopy, can be used for the qualitative and quantitative analyses of material components by identifying the positions and intensities of the spectral peaks. Therefore, spectroscopy technology has been widely used in material measurement, environmental monitoring, biomedicine, water quality testing, and other domains [1]- [6]. Peak detection is the basis of spectral analysis and has a direct influence on the reliability of the subsequent analyses.…”

Quantitative Determination of Total Cesium in Savannah River Site (SRS) Tank Waste by Inductively Coupled Plasma Emission Spectroscropy

“…In samples containing barium ion daughter isotopes, Cs isotopic analysis is subject to isobaric interferences (e.g., 134Ba, 135Ba and 137Ba). ICP-ES is not a technique utilized due to the inability for quantitative determination below sub-parts per million (ppm) levels (e.g., Cs 455.531 nm) and spectroscopic interferences (e.g., Cs 852.120 nm) [1] on standard ICP-ES systems due to detector wavelength (λ) range limitations (e.g., 165 nm to 785 nm). Sensitivity issues stem from the low ionization potential of Cs at 3.893eV and spectroscopic interferences with Argon (Ar) creating complex challenges for elemental Cs by this method [1] .…”