ANALYSIS OF AEROSOL-PARTICLES BY RESONANCE RAMAN-SCATTERING TECHNIQUE

被引：13
|
作者：
FUNG, KH
TANG, IN
机构：
来源：
APPLIED SPECTROSCOPY | 1992年 / 46卷 / 01期
关键词：
ANALYSIS FOR AEROSOL PARTICLES; RAMAN SPECTROSCOPY; SPECTROSCOPIC TECHNIQUES;
D O I：
10.1366/0003702924444399
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
An analytical technique for aerosol samples which utilizes the resonance Raman effect is described. The aerosol particles were generated at 50 kHz by a vibrating orifice. The nominal particle size was 45-mu-m in diameter. The visible lines (4579, 4765, 4880, and 5145 angstrom) of a continuous argon-ion laser were used as the excitation source. Within the coverage of the laser wavelengths, effects of pre-resonance, resonance, and post-resonance Raman scattering were studied. Under the resonance condition, the enhancement of p-nitrosodimethylaniline is 5.5 x 10(4) when compared to that of nitrate ions. The corresponding concentration of detection limit is 10(-6) molar.
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页码：159 / 162
页数：4
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