Analysis of organic vapors with laser induced breakdown spectroscopy

被引：24

作者：

Nozari, Hadi ^{[1
]}

Rezaei, Fatemeh ^{[2
]}

Tavassoli, Seyed Hassan ^{[1
]}

机构：

[1] Shahid Beheshti Univ, GC, Laser & Plasma Res Inst, Tehran 1983963113, Iran

[2] KN Toosi Univ Technol, Dept Phys, Tehran 158754416, Iran

来源：

PHYSICS OF PLASMAS | 2015年 / 22卷 / 09期

关键词：

TO-AIR RATIO; INDUCED SPARK; LIQUID DROPLETS; EMISSION; PROFILES; IGNITION; ALUMINUM; PLASMAS;

D O I：

10.1063/1.4931174

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

In this paper, laser induced breakdown spectroscopy (LIBS) is utilized in the study of acetone, ethanol, methanol, cyclohexane, and nonane vapors. Carbon, hydrogen, oxygen, and nitrogen atomic emission spectra have been recorded following laser-induced breakdown of the organic vapors that are mixed with air inside a quartz chamber at atmospheric pressure. The plasma is generated with focused, Q-switched Nd:YAG radiation at the wavelength of 1064 nm. The effects of ignition and vapor pressure are discussed in view of the appearance of the emission spectra. The recorded spectra are proportional to the vapor pressure in air. The hydrogen and oxygen contributions diminish gradually with consecutive laser-plasma events without gas flow. The results show that LIBS can be used to characterize organic vapor. (C) 2015 AIP Publishing LLC.

引用

页数：8

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