کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7846539 | 1508612 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Absorption cross sections of 13C ethane and propane isotopologues in the 3 µm region
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
طیف سنجی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Absorption cross sections of 13C ethane and propane isotopologues in the 3 µm region Absorption cross sections of 13C ethane and propane isotopologues in the 3 µm region](/preview/png/7846539.png)
چکیده انگلیسی
To the best of our knowledge, we present first-time measurements of the absorption cross sections of 13C ethane and propane isotopologues in the spectral region around 3000Â cm-1. The spectra of 13C12CH6, 13C2H6 and 13C12C2H8 have been recorded at approximate room temperature and atmospheric pressure for concentrations between 0.325% and 0.750% in nitrogen using an FTIR spectrometer with a resolution of 0.5Â cm-1. For calibration purposes an ethane and a propane spectrum each obtained with a natural isotopologue sample were compared to respective spectra from the Pacific Northwest National Laboratory (PNNL). The spectrum of 13C12CH6 is shifted between 3.5Â cmâ1 and 3.8Â cm-1 towards smaller wavenumbers compared to 12C2H6. The peaks of 13C2H6 ethane were shifted between â4.4Â cm-1 and â7.2Â cm-1 relatively to the corresponding 12C peaks. 13C12C2H8 shows a wavenumber shift of â2Â cmâ1 for the largest central peak at 2965.5Â cm-1 and â6.5Â cm-1 for the second largest peak at 2955Â cm-1. The newly determined cross sections will allow for the first time isotopologue-sensitive spectral analyses of ethane and propane in this spectral region and may be used for applications from atmospheric and planetary research to natural gas exploration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 203, December 2017, Pages 517-521
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 203, December 2017, Pages 517-521
نویسندگان
Alain Loh, Marcus Wolff,