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- spark ionization source 火花离子源
- Parent [M+H](superscript +) ion was produced by splitting argon with anode gas ionization source. 监测极限、回收率、线性相关性、重现性等有效参数都得以侧定。
- Based on extensive research of literature, the feasibility of using ambient flame as ionization source of mass spectrometry is studied theoretically. 在文献调研的基础上,对常压火焰用做质谱电离源的可行性作了理论上的探讨。
- Trace amount, a method for detect trace amount substance, such as toluene, using an ion mobility spectrometer equipped with a laser ionization source, is researched. 摘要以对痕量甲苯的检测为例,研究了以激光作为电离源的离子迁移谱对痕量物质进行检测的方法。
- The fundamental principle of ion mobility spectrometry and the recent progress in ionization source,miniaturization,Chiral separation,tandem use with GC and MS were summarized. 简要介绍离子迁移谱的基本原理、离子迁移率理论,以及离子迁移谱仪的最新研究进展;
- Electrospray-assisted laser desorption ionization (ELDI), a combination of electrospray ionization and laser desorption, is an ambient ionization source developerd in our laboratory. 摘要电喷洒辅助雷射脱附游离法是一种结合电喷洒游离法及雷射脱附游离法的新式大气压力游离法。
- A VUV soft ionization source was adopted in the mass spectrometer, which can avoid the formation of fragment ions and analyze volatile organic compounds in ambient air without pre-separation. 仪器采用了软电离方式,避免了碎片离子峰的形成,便于对污染环境中挥发性有机物的解析。
- field ionization source;FI source 场电离源
- Some bright spark has left the tap running all night. 哪个小淘气干的聪明事,让水龙头开了一夜。
- chemical ionization source mass spectrometry 化学电离源质谱法
- A spark touched off the gunpowder. 一粒火星引起了火药爆炸。
- John is the spark plug on his rowing team. 约翰是划船队的中坚分子。
- electron impact-chemical ionization source 电子轰击-化学电离复合源
- Local fighting might spark off a major war. 局部战斗有可能引发一场大规模战争。
- The news comes from a reliable source. 这消息来自可靠的来源。
- There was a wild spark in his eyes. 他的两眼炯炯发光。
- He hasn't a spark of generosity in him. 他一点也不慷慨。
- It's hard to get at the spark plug without a proper wrench. 没有一把合适的扳钳,要抓住那个火花塞是困难的。
- The vital spark in him makes him an artist. 他生气勃勃的活力使他成为一个艺术家。