イオンマイクロアナライザーによるガラス分析のための標準試料

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  • Standard samples for the analysis of glasses with an ion microanalyzer
  • イオン マイクロアナライザー ニヨル ガラス ブンセキ ノ タメ ノ ヒョウジ

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Amorphous materials prepared from alkoxides have been proposed as standard samples for the quantitative analysis of glasses by secondary ion mass spectrometry (SIMS). Ethanolic solutions containing silicon tetraethoxide, aluminum s-butoxide, sodium methoxide, calcium ethoxide, and boric acid were solidified by evaporation of the solvent and hydrolysis at (2025)°C and (4050) % of relative humidity. The resulting numerous flakes (3 mm×3 mm, 50 μm thick) were heated at 550°C to obtain the standard samples of compositions, 81 SiO2-13 B2O3-2 Al2O3-(1.33.9) Na2O-(0.23.5) CaO wt %. They had similar properties to corresponding glasses and homogeneity sufficient for quantitative analyses by SIMS. However, the standard samples produced more molecular ions (SiO+) than corresponding glasses. This suggested minor differences in structure between the two. Pyrex glass and Japanese standard reference material borosilicate glass R501 were analyzed by SIMS for sodium and calcium with satisfactory results by the use of calibration curves prepared from three standard samples. The suggested standard samples can be especially useful when standard glass samples are not commercially available or can not be prepared easily by conventional melting procedures or diffusion processes.

収録刊行物

  • 分析化学

    分析化学 29 (9), 627-631, 1980

    公益社団法人 日本分析化学会

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