Influence of Humidity on Characteristic of Laser-Induced Soil Plasmas

被引：5

作者：

Lu Cui Ping ^{[1
]}

Liu Wen-qing ^{[1
]}

Zhao Nan-jing ^{[1
]}

Liu Li-tuo ^{[1
]}

Chen Dong ^{[1
]}

Zhang Yu-jun ^{[1
]}

Liu Jian-guo ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Environm Opt & Technol, Anhui Prov Lab Environm Opt Monitoring Technol, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2010年 / 30卷 / 11期

关键词：

Laser-induced breakdown spectroscopy; Laser induced plasma; Soil humidity; Plasma temperature; Electron density; INDUCED BREAKDOWN SPECTROSCOPY; LIBS;

D O I：

10.3964/j.issn.1000-0593(2010)11-2885-04

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The soil samples at six different humidities were prepared for studying the influence of soil humidity on laser-induced plasmas By analyzing the characteristic spectral lines of Pb with the wavelength of 405 78 nm, It was demonstrated that the in tensities of spectral line SNR and RSD are linearly Inversely proportional to the soil humidity Under the approximation of local thermal equilibrium, by analyzing the characteristic spectral lines of Fe within the wavelength range of 400 to 440 nm the temperature of plasmas was obtained by means of the two-dimensional Boltzmann plane. The experimental results show that the plasma temperature monotonously changes from 11 800 to 7 800 K and the electron density monotonously changes from 3 3 x 10(6) cm(-3) to 2 8 x 10(6) cm(-3), when the humidity increases from 0 to 20%

引用

页码：2885 / 2888

页数：4

共 12 条

[1] Laser-induced breakdown spectroscopy in art and archaeology
Anglos, D
[J]. APPLIED SPECTROSCOPY, 2001, 55 (06) : 186A - 205A
[2] [Anonymous], NIST EL DAT
[3] [Anonymous], 2006, Handbook of Laser-Induced Breakdown Spectroscopy
[4] Trace element analysis in water by the laser-induced breakdown spectroscopy technique
Arca, G
Ciucci, A
Palleschi, V
Rastelli, S
Tognoni, E
[J]. APPLIED SPECTROSCOPY, 1997, 51 (08) : 1102 - 1105
[5] Determination of heavy metals in soils by laser induced breakdown spectroscopy
Capitelli, F
Colao, F
Provenzano, MR
Fantoni, R
Brunetti, G
Senesi, N
[J]. GEODERMA, 2002, 106 (1-2) : 45 - 62
[6] Time-resolved laser-induced breakdown spectroscopy: Application for qualitative and quantitative detection of fluorine, chlorine, sulfur, and carbon in air
Dudragne, L
Adam, P
Amouroux, J
[J]. APPLIED SPECTROSCOPY, 1998, 52 (10) : 1321 - 1327
[7] Matrix effects in the detection of Pb and Ba in soils using laser-induced breakdown spectroscopy
Eppler, AS
Cremers, DA
Hickmott, DD
Ferris, MJ
Koskelo, AC
[J]. APPLIED SPECTROSCOPY, 1996, 50 (09) : 1175 - 1181
[8] Comparisons between LIBS and ICP/OES
Fichet, P
Tabarant, M
Salle, B
Gautier, C
[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2006, 385 (02) : 338 - 344
[9] Griem H.R., 1974, Spectral line broadening by plasmas, VFirst
[10] Effect of sampling geometry on elemental emissions in laser-induced breakdown spectroscopy
Multari, RA
Foster, LE
Cremers, DA
Ferris, MJ
[J]. APPLIED SPECTROSCOPY, 1996, 50 (12) : 1483 - 1499

← 1 2 →