کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
847235 909222 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Terahertz spectroscopy investigation of preservative molecules
ترجمه فارسی عنوان
بررسی طیف سنجی تارهرتز مولکول های نگهدارنده
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی

We obtained the terahertz (THz) absorption characteristics of six types of preservatives in the 0.2–2 THz range using THz time-domain spectroscopy (THz-TDS). The structural and vibrational frequencies of the samples were calculated using density functional theory (DFT); the calculated results fit well with the experimental data. Assignments of the observed THz absorptions were proposed, based on the DFT calculations. The results indicate that the measured characteristic frequencies arise from the collective vibration of intramolecular, intermolecular, and phonon modes. This work demonstrates that THz-TDS spectroscopy can be useful for investigating preservatives in food and agriculture products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 127, Issue 12, June 2016, Pages 4954–4958
نویسندگان
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