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標準試料の測定に基づく徳島大学EDSにおける珪酸塩鉱物化学組成データの補正
https://tokushima-u.repo.nii.ac.jp/records/2012381
https://tokushima-u.repo.nii.ac.jp/records/2012381a99cc9fe-6b73-4b3b-9256-472203190c40
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
nsr_33_1.pdf (16.5 MB)
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| Item type | 文献 / Documents(1) | |||||||||||||||||
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| 公開日 | 2024-12-17 | |||||||||||||||||
| アクセス権 | ||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||
| 資源タイプ | ||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||||||
| 出版タイプ | ||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | 標準試料の測定に基づく徳島大学EDSにおける珪酸塩鉱物化学組成データの補正 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| タイトル別表記 | ||||||||||||||||||
| その他のタイトル | Correction for mineral chemistry of silicates obtained by EDS at Tokushima University based on measurements of standard minerals | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 著者 |
青矢, 睦月
× 青矢, 睦月
WEKO
600
× 小泉, 比架留
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| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | In order to obtain as closely accurate stoichiometry by EDS at Tokushima University (Hitachi SU3500 with EDAX Elements) as by WDS, we carried out EDS analyses for chemical composition of 10 standard minerals (albite, almandine, biotite, bustamite, diopside, jadeite, kaersutite, olivine, plagioclase An65 and sanidine), compared the measured values with their recommended values and then, determined correction factors for 9 major elements in silicate minerals. Linear regressions were adopted for 6 elements, Ca, Al, Mg, Ti, Mn and Fe, and proportional correction factors ranging from 0.9083 for Ca to 1.0574 for Mg were determined for each element. For Na and K quadratic approximations were adopted and yield 1st and 2nd order correction factors for each. For Si, due to the output style of the EDS data with the cation total normalized to 100%, uses of a common (average) correction factor for all silicate minerals are improper because of the relative over- or under-estimate of Si against the other combined elements that depends on mineral species. The correction factor for Si, therefore, is not fixed and is determined manually for each mineral specie so as to achieve its stoichiometric total cation number. It is confirmed that use of the above-mentioned correction factors improves stoichiometries for all the silicate minerals examined in this study. Total of 3 times of determinations for correction factors carried out over a period of about 6 months, during which the filament of the electron-gun was once broken and replaced to new one, suggest that errors in stoichiometry due to different aging conditions of the filament are negligible and the first set of correction factors determined on June 29th 2021 can be used semi-permanently. | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | EDS at Tokushima University | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | silicate minerals | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | stoichiometry | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | correction factor | |||||||||||||||||
| 書誌情報 |
ja : 自然科学研究 en : Natural Science Research 巻 33, p. 1-24, 発行日 2024 |
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| 収録物ID | ||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||
| 収録物識別子 | 09146385 | |||||||||||||||||
| 出版者 | ||||||||||||||||||
| 出版者 | 徳島大学大学院社会産業理工学研究部 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
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| 識別子 | 415568 | |||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||
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| 言語 | jpn | |||||||||||||||||
