کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5430395 | 1397400 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurements of near-UV absorption spectra of acetone and 3-pentanone at high temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
طیف سنجی
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چکیده انگلیسی
Gas phase acetone and 3-pentanone absorption cross sections have been measured in shock-heated gases in the wavelength range from 220 to 340 nm (the nâÏ* system) at temperatures between 300 and 1100 K. Absorption measurements using a deuterium source and a kinetic spectrograph enable accurate, broadband measurements of absorption cross sections while simultaneously observing decomposition at elevated temperatures, thus minimizing errors due to product formation. The absorption spectra of both ketones increase in strength and shift to the red with increasing temperature. The spectra are fitted to a parameterized Gaussian curve to allow for calculations of the cross sections as a function of temperature and wavelength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 109, Issue 11, July 2008, Pages 2037-2044
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 109, Issue 11, July 2008, Pages 2037-2044
نویسندگان
Jon D. Koch, Joachim Gronki, Ronald K. Hanson,