A New Photoacoustic Soot Spectrophone for Filter-Free Measurements of Black Carbon at 880 nm

被引：1
|
作者：
Abichou, Goufrane [1 ,2 ]
Ngagine, Soulemane H. [1 ]
Ba, Tong N. [1 ]
Wang, Gaoxuan [1 ]
Flament, Pascal [1 ]
Deboudt, Karine [1 ]
Dusanter, Sebastien [2 ]
Sigrist, Markus W. [3 ]
Tomas, Alexandre [2 ]
Chen, Weidong [1 ]
机构：
[1] Univ Littoral Cote dOpale, Lab Phys Chim Atmosphere, 189A Ave Maurice Schumann, F-59140 Dunkerque, France
[2] Univ Lille, Ctr Energy & Environm, Inst Mines Telecom, IMT Nord Europe, 941 Rue Charles Bourseul, F-59500 Douai, France
[3] Swiss Fed Inst Technol, Laser Spect & Sensing Lab, Inst Quantum Elect, Otto Stern Weg 1, CH-8093 Zurich, Switzerland
来源：
MOLECULES | 2022年 / 27卷 / 18期
关键词：
light absorption; photoacoustic spectroscopy; black carbon; LIGHT-ABSORPTION; SPECTROMETER; INSTRUMENTS; CALIBRATION; SENSOR; GAS;
D O I：
10.3390/molecules27186065
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
A new photoacoustic soot spectrometer (PASS) operating at 880 nm was developed, for the first time, for filter-free measurements of black carbon (BC). The performance of the developed PASS was characterized and evaluated using a reference aethalometer AE51 on incense smoke in the air. An excellent correlation on the measurement of incense smoke was found between the two instruments in comparison with a regression coefficient of 0.99. A 1 sigma detection limit of 0.8 mu g m(-3) was achieved for BC measurement at a time resolution of 1 s. It can be further reduced to 0.1 mu g m(-3), using a longer integration time of 1 min.
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页数：12
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