1. An ion source comprising: a first chamber with a needle electrode (5) arranged therein; a first opening portion (8) for introducing ions generated in said first chamber into a mass spectrometric portion; and a second opening portion for supplying a sample gas, wherein said second opening...
ion电离source离子源maldiapci MassSpectrometry质谱一.质谱法原理是将样品分子离解为带电的离子,并通过对生成离子的质量和强度测定,而进行样品成分和结构分析的方法。MassSpectrometryisusedtodeterminethemassandstructureofmoleculesbasedonthemass-to-charge(m/z)ratioofthemolecularionanditsfragments.1)不能确定能级之间的...
sourcen. 1.河流的源头;发源地 2.来源;出处 3.(通常sources) 提供资料的人,原始资料(尤指书、文件等)(尤指供研究的资料);[attrib 作定语]( source materia Sourcen. 来源;引起…的东西,提供消息的人,源头 MASS=Manual Analysis Scan System 人工分析扫描系统 ...
Fast atom bombardment of solids (FAB): a new ion source for mass spectrometry. J. Chem. Soc. Chem. Commun. 325-327.Barber, M., R.S. Bordoli, R.D. Segwick, and A.N. Tyler. 1981. Fast atom bombardment of solids (F.A.B.): A new ion source for mass spectrometry. J. Chem. ...
Droplet ion source for mass spectrometryDroplet ion source for mass spectrometryThe invention provides devices, device configurations and methods for improved sensitivity, detection level and efficiency in mass spectrometry particularly as applied to biological molecules, including biological polymers, such as...
摘要：Provided are ion sources, methods of forming ions and mass analyzer systems. In various embodiments, the present teachings provide ion sources, methods for focusing ions from an ion source, and methods for operating a time-of-flight mass analyzer. In various embodiments, the present ...
摘要：Provided are ion sources, methods of forming ions and mass analyzer systems. In various embodiments, the present teachings provide ion sources, methods for focusing ions from an ion source, and methods for operating a time-of-flight mass analyzer. In various embodiments, the present ...
Mass Spectrometry Fundamentals (Part 1 of 3): Ion Sources 57:22 In part 1 of this 3-part webinar series we focus on the ionization techniques commonly used today and some characteristics of ion source design. Learn more Terms of Use Privacy Trademarks Careers Cookies China Video ...
PROBLEM TO BE SOLVED: To provide a tandem mass spectrometer which can perform tandem mass spectrometry on a trace quantity of a sample to be analyzed with a system selecting ions to be analyzed or ions not to be analyzed together with the ions to be analyzed before a first stage mass spect...
An ion samplinginterfaceextractsgasfrom the plasma into a vacuum systemwhere the ions are massanalyzedanddetected.The feas... RS Houx,JJ Tsoupson 被引量: 0发表: 0年 Mass discrimination correction in multiple-collector plasma source mass spectrometry: an example using Cu and Zn isotopes Multiple...