دورية أكاديمية
Experimental Observation of the Effects of Translational and Rotational Electrode Misalignment on a Planar Linear Ion Trap Mass Spectrometer.
العنوان: | Experimental Observation of the Effects of Translational and Rotational Electrode Misalignment on a Planar Linear Ion Trap Mass Spectrometer. |
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المؤلفون: | Tian Y; Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA.; Department of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, People's Republic of China., Decker TK; Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, 84602, USA., McClellan JS; Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, 84602, USA., Wu Q; Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA., De la Cruz A; Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA., Hawkins AR; Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, 84602, USA., Austin DE; Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA. austin@chem.byu.edu. |
المصدر: | Journal of the American Society for Mass Spectrometry [J Am Soc Mass Spectrom] 2018 Jul; Vol. 29 (7), pp. 1376-1385. Date of Electronic Publication: 2018 Apr 05. |
نوع المنشور: | Journal Article |
اللغة: | English |
بيانات الدورية: | Publisher: ACS Publications Country of Publication: United States NLM ID: 9010412 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1123 (Electronic) Linking ISSN: 10440305 NLM ISO Abbreviation: J Am Soc Mass Spectrom Subsets: PubMed not MEDLINE |
أسماء مطبوعة: | Publication: 2020- : Washington, DC : ACS Publications Original Publication: New York, NY : Elsevier, c1990- |
مستخلص: | The performance of miniaturized ion trap mass analyzers is limited, in part, by the accuracy with which electrodes can be fabricated and positioned relative to each other. Alignment of plates in a two-plate planar LIT is ideal to characterize misalignment effects, as it represents the simplest possible case, having only six degrees of freedom (DOF) (three translational and three rotational). High-precision motorized actuators were used to vary the alignment between the two ion trap plates in five DOFs-x, y, z, pitch, and yaw. A comparison between the experiment and previous simulations shows reasonable agreement. Pitch, or the degree to which the plates are parallel along the axial direction, has the largest and sharpest impact to resolving power, with resolving power dropping noticeably with pitch misalignment of a fraction of a degree. Lateral displacement (x) and yaw (rotation of one plate, but plates remain parallel) both have a strong impact on ion ejection efficiency, but little effect on resolving power. The effects of plate spacing (y-displacement) on both resolving power and ion ejection efficiency are attributable to higher-order terms in the trapping field. Varying the DC (axial) trapping potential can elucidate the effects where more misalignments in more than one DOF affect performance. Implications of these results for miniaturized ion traps are discussed. Graphical Abstract ᅟ. |
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معلومات مُعتمدة: | 1404886 International National Science Foundation |
فهرسة مساهمة: | Keywords: Degrees of freedom; Displacement; Geometry deviation; Linear ion trap (LIT); Mass resolution; Misalignment |
تواريخ الأحداث: | Date Created: 20180407 Latest Revision: 20191120 |
رمز التحديث: | 20221213 |
DOI: | 10.1007/s13361-018-1942-x |
PMID: | 29623663 |
قاعدة البيانات: | MEDLINE |
تدمد: | 1879-1123 |
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DOI: | 10.1007/s13361-018-1942-x |