دورية أكاديمية
Quartz-enhanced photoacoustic spectroscopy (QEPAS) and Beat Frequency-QEPAS techniques for air pollutants detection: A comparison in terms of sensitivity and acquisition time
العنوان: | Quartz-enhanced photoacoustic spectroscopy (QEPAS) and Beat Frequency-QEPAS techniques for air pollutants detection: A comparison in terms of sensitivity and acquisition time |
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المؤلفون: | Biao Li, Giansergio Menduni, Marilena Giglio, Pietro Patimisco, Angelo Sampaolo, Andrea Zifarelli, Hongpeng Wu, Tingting Wei, Vincenzo Spagnolo, Lei Dong |
المصدر: | Photoacoustics, Vol 31, Iss , Pp 100479- (2023) |
بيانات النشر: | Elsevier, 2023. |
سنة النشر: | 2023 |
المجموعة: | LCC:Physics LCC:Acoustics. Sound LCC:Optics. Light |
مصطلحات موضوعية: | QEPAS, BF-QEPAS, Air pollutants detection, Multigas measurement, NO detection, Physics, QC1-999, Acoustics. Sound, QC221-246, Optics. Light, QC350-467 |
الوصف: | In this work, a comparison between Quartz Enhanced Photoacoustic Spectroscopy (QEPAS) and Beat Frequency-QEPAS (BF-QEPAS) techniques for environmental monitoring of pollutants is reported. A spectrophone composed of a T-shaped Quartz Tuning Fork (QTF) coupled with resonator tubes was employed as a detection module. An interband cascade laser has been used as an exciting source, allowing the targeting of two NO absorption features, located at 1900.07 cm−1 and 1900.52 cm−1, and a water vapor absorption feature, located at 1901.76 cm−1. Minimum detection limits of 90 ppb and 180 ppb were achieved with QEPAS and BF-QEPAS techniques, respectively, for NO detection. The capability to detect multiple components in the same gas mixture using BF-QEPAS was also demonstrated. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 2213-5979 |
Relation: | http://www.sciencedirect.com/science/article/pii/S2213597923000320; https://doaj.org/toc/2213-5979 |
DOI: | 10.1016/j.pacs.2023.100479 |
URL الوصول: | https://doaj.org/article/bddeee0c17db4b67ae90512e83e21f74 |
رقم الأكسشن: | edsdoj.bddeee0c17db4b67ae90512e83e21f74 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 22135979 |
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DOI: | 10.1016/j.pacs.2023.100479 |