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Journal Articles

Spectrochemistry of technetium by liquid electrode plasma optical emission spectrometry and its applicability of quantification for highly active liquid waste

Yamamoto, Masahiko; Do, V. K.; Taguchi, Shigeo; Kuno, Takehiko; Takamura, Yuzuru*

Spectrochimica Acta, Part B, 155, p.134 - 140, 2019/05

The emission spectra of technetium (Tc) by liquid electrode plasma optical emission spectrometry have been investigated in this study. From the spectra, 52 emission peaks of Tc were observed in the 250-500 nm wavelength range. All peaks were assigned to the neutral state or singly ionized state. The relative intensities of these peaks were similar to those excited by an electric spark. The strongest intensity peaks were found at 254.3 nm, 261.0 nm, and 264.7 nm. Spectral interferences of coexisting elements in highly active liquid waste of reprocessing stream on those three strongest peaks were investigated using simulated sample. No spectral interferences were observed around the 264.7 nm Tc peak. Therefore, analytical performance using 264.7 nm peak was evaluated. The detection limit, estimated on standard and blank samples in 0.4 M nitric acid, was 1.9 mg/L. The relative standard deviation of Tc standard sample (12.0 mg/L) was 3.8% (N = 5, 1$$sigma$$).

Journal Articles

Energy dispersion of auger electrons in resonant excitation of the Mo 2p$$_{3/2}$$ orbital in Mo and Li$$_{2}$$MoO$$_{4}$$

Sasaki, Teikichi; Baba, Yuji; Yoshii, Kenji; Yamamoto, Hiroyuki

Journal of Physics; Condensed Matter, 7, p.463 - 468, 1995/00

 Times Cited Count:16 Percentile:30.35(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Cascade Auger transitions of resonantly excited S 1s and Cl 1s holes

Sasaki, Teikichi; Baba, Yuji; Yoshii, Kenji; Yamamoto, Hiroyuki

Journal of Physics; Condensed Matter, 7, p.4385 - 4394, 1995/00

 Times Cited Count:4 Percentile:66.83(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Spectator and participator Auger transitions by resonant excitation of the Mo 2p$$_{3/2}$$ orbital in Li$$_{2}$$MoO$$_{4}$$,MoO$$_{3}$$ and MoS$$_{2}$$

Sasaki, Teikichi; Baba, Yuji; Yoshii, Kenji; Yamamoto, Hiroyuki; Nakatani, Takeshi*

Physical Review B, 50(21), p.15519 - 15526, 1994/12

 Times Cited Count:15 Percentile:29.88(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

ESR study on thermally stimulated exoelectron emission from irradiated K$$_{2}$$SO$$_{4}$$

Phys.Status Solidi A, 34(1), p.339 - 346, 1976/01

 Times Cited Count:11

no abstracts in English

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