Effects of particle size distribution on inductively coupled plasma mass spectrometry signal intensity during laser ablation of glass samples

被引:92
作者
Jeong, SH [1 ]
Borisov, OV [1 ]
Yoo, JH [1 ]
Mao, XL [1 ]
Russo, RE [1 ]
机构
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
关键词
D O I
10.1021/ac990455a
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The relation between laser-generated particles and ICPMS signal intensity was investigated using single-pulse laser ablation sampling of solids. The particle size distribution of glass samples was measured using an optical particle counter for different laser ablation conditions. Ablation of a new surface produced fewer particles and lower ICPMS signal intensity than a preablated surface. Laser power density of 0.4-0.5 GW/cm(2) was found to be a threshold value, across which particle size distribution changed. Laser beam diameter was a more influential parameter than power density in efficient particle generation. Particle loss during transport from the ablation chamber to the ICPMS was significant for a low carrier gas now rate of 0.1 L/min, while almost no loss was observed for a higher now rate of 0.26 L/min, The onset of ICPMS intensity time profiles decreased as more large particles were generated. ICPMS intensity data were calibrated with respect to the particle mass entering the ICPMS. Particle entrainment efficiency of the LA-ICPMS system was estimated and found to be a strong function of laser power density.
引用
收藏
页码:5123 / 5130
页数:8
相关论文
共 22 条
[1]   Laser ablation inductively coupled plasma mass spectrometry [J].
Alexander, ML ;
Smith, MR ;
Hartman, JS ;
Mendoza, A ;
Koppenaal, DW .
APPLIED SURFACE SCIENCE, 1998, 127 :255-261
[2]  
[Anonymous], 1991, SPECTROCHIM ACTA B
[3]   ENTRAINMENT AND TRANSPORT OF LASER ABLATED PLUMES FOR SUBSEQUENT ELEMENTAL ANALYSIS [J].
ARROWSMITH, P ;
HUGHES, SK .
APPLIED SPECTROSCOPY, 1988, 42 (07) :1231-1239
[4]  
BRAILOVSKY AB, 1995, APPL PHYS A-MATER, V61, P81, DOI 10.1007/BF01538216
[5]   More investigations into elemental fractionation resulting from laser ablation inductively coupled plasma mass spectrometry on glass samples [J].
Figg, DJ ;
Cross, JB ;
Brink, C .
APPLIED SURFACE SCIENCE, 1998, 127 :287-291
[6]   IMAGING AND BLACKBODY EMISSION-SPECTRA OF PARTICULATES GENERATED IN THE KRF-LASER ABLATION OF BN AND YBA2CU3O7-X [J].
GEOHEGAN, DB .
APPLIED PHYSICS LETTERS, 1993, 62 (13) :1463-1465
[7]  
Hesketh H. E., 1986, FINE PARTICLES GASEO
[8]  
Hinds WC, 1982, AEROSOL TECHNOLOGY P
[9]   Influence of gas environment on picosecond laser ablation sampling efficiency and ICP conditions [J].
Leung, APK ;
Chan, WT ;
Mao, XL ;
Russo, RE .
ANALYTICAL CHEMISTRY, 1998, 70 (22) :4709-4716
[10]   Influence of sample surface condition on chemical analysis using laser ablation inductively coupled plasma atomic emission spectroscopy [J].
Mao, XL ;
Chan, WT ;
Russo, RE .
APPLIED SPECTROSCOPY, 1997, 51 (07) :1047-1054