| Studies on Excitation and Rotational Temperatures of an Oxygenshielded Argon Microwave Plasma Torch Source |
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| 作者姓名： | WANG Shu-hua LI Guo-zhen ZHOU Jian-guang JIN Qin-han |
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| 作者单位： | WANG Shu-hua 1，LI Guo-zhen 2，ZHOU Jian-guang 1 and JIN Qin-han 1**1. Institute of Miniature Analytical Instrumentation，College of Chemistry，Jilin University，Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments，Changchun 130021，P. R. China; 2. Department of Physics，Bohai University，Jinzhou 121000，P. R. China |
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| 摘 要： | IntroductionPlasma sources have been widely used for traceelemental analysis in atomic emission spectrometry(AES)or mass spectrometry(MS).The microwaveplasma torch(MPT),as a relative new source,wasfirst developed by Jinet al.in19851,2]and modifiedby Jin …
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| 关 键 词： | 微波等离子体焰炬 激发温度 旋转温度 氧隔离 |
| 文章编号： | 1005-9040（2006）-05-560-06 |
| 收稿时间： | 2006-01-16 |
Studies on Excitation and Rotational Temperatures of an Oxygen-shielded Argon Microwave Plasma Torch Source |
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| WANG Shu-hua LI Guo-zhen ZHOU Jian-guang JIN Qin-han.Studies on Excitation and Rotational Temperatures of an Oxygenshielded Argon Microwave Plasma Torch Source[J].Chemical Research in Chinese University,2006,22(5):560-565. |
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| Authors: | Shu-hua WANG Guo-zhen LI Jian-guang ZHOU Qin-han JIN |
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| Institution: | aInstitute of Miniature Analytical Instrumentation, College of Chemistry, Jilin University, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Changchun 130021, P. R. China;bDepartment of Physics, Bohai University, Jinzhou 121000, P. R. China |
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| Abstract: | Excitation( Texc ) and rotation( Trot ) temperatures were determined under different conditions for an oxygen-shielded argon microwave plasmsa torch source(OS-Ar-MPT). The Texc value, which was shown to be between 4300 and 5250 K under different operating conditions, was calculated from the slope of the Boltzmann plot with Fe as the thermometric species. The Trot value, which was in the range of 2100-2500 K, was measured with OH molecular spectra. The influences of microwave power, flow rates of the support gas, carrier gas, and shielding gas, as well as the observation height on Texc and Trot were investigated and discussed. The detailed results of Texc and Trot provided a better understanding of the performance of an OS-ArMPT as a source for atomic emission spectrometry. |
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| Keywords: | Microwave plasma torch(MPT) Excitation temperature Rotational temperature |
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