BASIC INVESTIGATIONS FOR LASER MICROANALYSIS .3. APPLICATION OF DIFFERENT BUFFER GASES FOR LASER-PRODUCED SAMPLE PLUMES

被引：146

作者：

SDORRA, W ^{[1
]}

NIEMAX, K ^{[1
]}

机构：

[1] INST SPEKTROCHEM & ANGEW SPEKTROSKOPIE,BUNSEN KIRCHHOFF STR 11,W-4600 DORTMUND 1,GERMANY

来源：

MIKROCHIMICA ACTA | 1992年 / 107卷 / 3-6期

关键词：

LASER MICROANALYSIS; LASER ABLATION; OPTICAL EMISSION SPECTROMETRY;

D O I：

10.1007/BF01244487

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We have measured the diameters and depths of craters in a copper sample and the amount of material ablated by the 1.06-mu-m radiation of a pulse Nd : YAG laser in the buffer gases argon, neon, helium, air and nitrogen as well as the emission intensities of analyte atoms in dependence on laser power and buffer gas pressure. The results are correlated with corresponding data of the plasma temperatures and the relative electron densities in the plasma. Criteria for the choice of the buffer gas, the buffer gas pressure and the laser power for optical emission spectrometry of microplasmas are given.

引用

页码：319 / 327

页数：9

共 14 条

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