| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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タイトル |
分析による拡散定数の新しい測定装置について |
| 言語 |
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言語 |
jpn |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
| その他のタイトル（英） |
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その他のタイトル |
A New Apparatus for Diffusion Measurements using Analytical Method |
| 著者 |
中村, 正好
渡辺, 格
NAKAMURA, Masayoshi
WATANABE, Itaru
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| 著者所属 |
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東京大学理工学研究所 |
| 著者所属 |
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東京大学理工学研究所 |
| 著者所属（英） |
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en |
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THE INSTITUTE OF SCIENCE AND TECHNOLOGY UNIVERSITY OF TOKYO |
| 著者所属（英） |
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en |
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THE INSTITUTE OF SCIENCE AND TECHNOLOGY UNIVERSITY OF TOKYO |
| 出版者 |
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出版者 |
東京大学理工学研究所 |
| 書誌情報 |
東京大學理工學研究所報告
巻 12,
号 9,
p. 133-138,
発行日 1958-03-27
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| 抄録（英） |
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内容記述タイプ |
Other |
|
内容記述 |
A new type apparatus for diffusion measurements has been constructed and diffusion constants of several substances have been measured with considerably satisfying results. This apparatus is composed of two upper and lower round metal-blocks which are held together with a center pin. A sharp boundary between solution and solvent can be formed by rotating the upper section which contains solvent relative to the lower section which contains solution. This apparatus is suitable for diffusion measurements on colored substances, turbid solutions, and very dilute solutions, the diffusion constants of which can hardly be measured by the usual optical method. The substances tried were methylene blue (D_<20,w> = 45 × 10^<-7>cm^2/sec at 0.05% and 0.025%), ribonucleic acid from brewers yeast (D_<20,w> = 8.7 × 10^<-7>cm^2/sec at 0.1% and 0.05%), and deoxyribonucleic acid from herring soft roe (D_<20,w> = 1.6, 1.7, and 1.9 × 10^<-7>cm^2/sec at 0.28%, 0.1%, and 0.03% respectively). The data obtained on nucleic acids were quite in agreement with those obtained by the optical method. It must be noteworthy that diffusion constant of substances which have any activity such as bacteriophages, enzymes, or radio-isotope-labeled compounds can be measured without any special considerations on contaminating substances even in very dilute solutions. |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0371-6090 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN00162611 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: SA1511813000 |
SA1511813.pdf (503.8 kB)
