| 用共振电离飞行时间质谱仪分析土壤中超痕量气态金 |
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| 引用本文： | 马万云,惠秦.用共振电离飞行时间质谱仪分析土壤中超痕量气态金[J].分析测试学报,1996,15(1):17-20. |
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| 作者姓名： | 马万云 惠秦 |
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| 作者单位： | 清华大学物理系 |
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| 摘 要： | 采用激光共振电离飞行时间质谱技术（简称ＲＩＳ－ＴＯＦ技术）对土壤中超痕量气态金的含量进行了分析研究。ＲＩＳ－ＴＯＦ谱仪具有极高的灵敏度和很强的选择性，避免了对样品的预富集过程。本文给出了该谱仪对金元素的检测限和６５个土壤中气态金样品的分析结果，以及用中子活化法随机抽样检查的结果。
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| 关 键 词： | 共振电离，飞行时间质谱，气相，土壤，金 |
Analysing Ultratrace Au in Geogas Samples with RIS-TOF Spectrometer |
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| Ma Wanyun,Hui Qin,Xue Meng,Ji Wangxi,Chen Dieyan.Analysing Ultratrace Au in Geogas Samples with RIS-TOF Spectrometer[J].Journal of Instrumental Analysis,1996,15(1):17-20. |
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| Authors: | Ma Wanyun Hui Qin Xue Meng Ji Wangxi Chen Dieyan |
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| Abstract: | We report here a new analytical technique,called as RIS-TOF mass spectrometer, for the determination of Au content in geogas samples.This technique has high sensitivity and high selectivity,and avoids the chemical enrichment.It is based on thermal atomization of substance in vacuum ,resonance stepwise photoionization of atoms through autoionization, and followed by TOF mass analysis.The results of the determination of ultratrace Au content in geogas samples are present. |
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| Keywords: | RIS TOF Geogas Soil Au |
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