Determination of butanol distribution on salol-butanol crystals using Micro Raman Spectroscopy
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We carried out several analytical studies in order to determine the butanol distribution on a salol-butanol crystal. This work is required for a research using microgravity condition focused upon the in-situ observation with an interferometer of the temperature and concentration field for the organic transparent crystal (salol-butanol). In order to evaluate the concentration field for the liquid phase with an interferometer in case of crystal growth from solution in space, it is significant to determine the distribution of solute (butanol) on starting crystal before sample launching using a non-destructive analytical method. The Micro Raman Spectroscopy (MRS) was choice as the most appropriate analytical method among several analytical methods. We prepared a salol-butanol crystal enclosed into the 1mm thick quartz glass ampoule in order to verify the propriety for MRS. Obtained Raman spectrums for salol, butanol and salolbutanol crystal show that the butanol 2D-distribution on salolbutanol crystal can be determined by MRS. These results also demonstrate that there are no influences of thick glass cell upon measurements and that 3D-measurement is possible. In conclusion, we argue that MRS is the most appropriate method for determination of the 2D- and/or 3D- distribution of solute on the crystal among several non-destructive analytical methods.
KeywordsButanol Concentration Field Micro Raman Spectroscopy Salol Interferometric Observation
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- Y. Inatomi, T. Yoshida andK. Kuribayashi, Real-time Observation of Faceted Cellular Growth, Microgravity Quartery 3, 93–96 (1993).Google Scholar
- H. Kagi, K. Takahashi, H. Shimizu, F. Kitajima andA. Masuda, In-situ micro Raman study on graphitic carbon in some Antarctic ureilites, Proc. NIPR Symp. Antarct. Meteorites 4, 371–383 (1991)Google Scholar