DICP OpenIR
Calibration of an audio-frequency ion trap mass spectrometer
Cai, Y; Peng, WP; Kuo, SJ; Chang, HC
KeywordAudio-frequency Mass Calibration Single Particle Light Scattering
Source PublicationINTERNATIONAL JOURNAL OF MASS SPECTROMETRY
2002-02-15
Volume214Issue:1Pages:63-73
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectPhysics, Atomic, Molecular & Chemical ; Spectroscopy
WOS Research AreaPhysics ; Spectroscopy
WOS KeywordPAUL TRAP ; PARTICLE ; SINGLE ; SCAN ; SHIFTS
AbstractA method for calibration of an audio-frequency (AF) ion trap mass spectrometer is described. The method is proposed to surmount the obstacle that there is a lack of a proper calibrant for mass spectrometers in the mass-to-charge ratio (m/z) range of 10(6) to 10(10). To calibrate such mass spectra, we determine the point of ejection, q(eject), on the stability diagram of the ion trap operated in a mass-selective axial instability mode. This is accomplished by measuring the radial secular frequencies (and therefore, the m/z value) of a single trapped particle using a light scattering method, followed by monitoring the action of particle ejection in real time to obtain the q(eject). A delayed ejection with q(eject) = 0.949 +/- 0.004 is found at a trap driving frequency of Ohm/2pi = 200-600Hz. Theoretical analysis for the origin of the delayed ejection indicates that the delay is predominantly resulted from the existence of multipole components in the fields due to trap imperfections. Inclusion of -3% of the octopole with respect to the basic quadrupole field can satisfactorily account for our observations. An m/z accuracy approaching 0.1% is attainable after proper calibration of the AF ion trap mass spectrometer. (Int J Mass Spectrom 214 (2002) 63-73) (C) 2002 Elsevier Science B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000174338000006
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/83869
Collection中国科学院大连化学物理研究所
Affiliation1.Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Cai, Y,Peng, WP,Kuo, SJ,et al. Calibration of an audio-frequency ion trap mass spectrometer[J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,2002,214(1):63-73.
APA Cai, Y,Peng, WP,Kuo, SJ,&Chang, HC.(2002).Calibration of an audio-frequency ion trap mass spectrometer.INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,214(1),63-73.
MLA Cai, Y,et al."Calibration of an audio-frequency ion trap mass spectrometer".INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 214.1(2002):63-73.
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