メージャーエレメントの分析法としての発光分光分析
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概要
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In determining major elements by emission spectrochemical analysis, if the content of every other consituent element is small, no serious problem arises. But, if otherwise, the higher the content, the more the precision and accuracy of measurement are required.<BR>As for the precision, it is of late almost unquestionably high since Quantometer has come into use and development and improvement have been made on equipments such as photoelectric direct reading device and a few others, enabling the application of emission spectrochemical analysis to be made widely in the field of high alloy and non-metallic compound studies.<BR>But, when it comes to the analysis of complex high alloys, despite the use of multi-source emission that affords much better accuracy than with the conventional Feussner type emission method, numbers of standard samples for every alloy range are to be prepared in special cases to prevent the fall in accuracy by metallographical reason.<BR>In the case of high alloys, improvement of accuracy by simplifying the measuring method and of technique of preparing samples to avoid segregation as much as possible is considered important as the remaining problem.<BR>For non-metallic compounds, good precision and accuracy are now being obtained by fusing and homogenizing the material with lithium carbonate and borax, grounding and mixing it with graphite powder, then briquetting, in preparing the sample for analysis.
- 社団法人 日本分光学会の論文