木村石の蛍光スペクトルの解析

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タイトル別名
  • Analysis of the fluorescence spectra on Kimuraite.
  • キムラセキ ノ ケイコウ スペクトル ノ カイセキ

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抄録

The fluorescence spectra and luminescent properties of Kimuraite [CaY2(CO3)4·6H2O, rhombic, Bizen-cho, Higashimatsuura, Saga pref.] were investigated by a three-dimensional contour-plot method. From the results, the strongly reddish-purple fluorescence of the mineral under ultraviolet light was found to depend on the following fluorescent rare-earth(III)ions. Eu(III), Tb(III), Dy(III), and Gd(III). These rare-earth(III)ions in the mineral showed many sharp excitation and emission bands. The bands of the luminescence of Kimuraite could be attributed to the f-f allowed transition of Eu(III): Ex. 395 nm (7F65L6)/Em. 615 nm (5D07F2); Tb(III): Ex. 380 nm (7F65D3)/Em. 545 nm (5D47F5); Gd(III): Ex. 275 nm (8S7/26D3/2)/Em. 312 nm (6P7/28S7/2);Dy(III): Ex. 352 nm/Em. 575 nm (4F9/26H13/2), respectively.

収録刊行物

  • 分析化学

    分析化学 46 (4), 265-270, 1997

    公益社団法人 日本分析化学会

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