| 高分辨飞行时间质谱中的离子延时引出方法与实验 |
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| 引用本文： | 查庆民,陈东.高分辨飞行时间质谱中的离子延时引出方法与实验[J].岩矿测试,1999,18(3):182-184. |
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| 作者姓名： | 查庆民 陈东 |
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| 作者单位： | 中山大学测试中心,广东,广州,510275 |
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| 基金项目： | 中国分析测试协会科学仪器发展基金 |
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| 摘 要： | 为了提高激光解吸飞行时间质谱仪的分辨率，在自行研制的激光解吸飞行时间质谱仪上进行了离子延时引出新技术的探讨与实验，比较了不同的脉冲引出方式，在线性方式下得到了分辨率超过１０００的质谱图。
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| 关 键 词： | 飞行时间质谱仪 离子延时引出 脉冲电场 |
| 修稿时间： | 1998-12-14 |
Experiments on Delayed Ion Extraction Technique in Laser Desorption Time-of-flight Mass Spectrometric Analysis |
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| ZHA Qing-min,CHEN Dong,LAI Zhi-hui,LI Jun,DENG Hui-min,ZHAO Shan-kai.Experiments on Delayed Ion Extraction Technique in Laser Desorption Time-of-flight Mass Spectrometric Analysis[J].Rock and Mineral Analysis,1999,18(3):182-184. |
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| Authors: | ZHA Qing-min CHEN Dong LAI Zhi-hui LI Jun DENG Hui-min ZHAO Shan-kai |
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| Abstract: | In order to improve the resolution of laser desorption timeofflight mass spectrometer, experiments on a new delayed ion extraction technique were carried out on a laboratorybuiltup laser desorption timeofflight mass spectrometer. Different pulsed ion extraction modes were compared and a higher mass resolution over 1000 was obtained when linear mode was used.\=\= |
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| Keywords: | timeofflight mass spectrometry delayed ion extraction pulse electric field |
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