Articles | Volume 16, issue 24
Research article
15 Dec 2023
Research article |  | 15 Dec 2023

Characterization of the planar differential mobility analyzer (DMA P5): resolving power, transmission efficiency and its application to atmospheric relevant cluster measurements

Zhengning Xu, Jian Gao, Zhuanghao Xu, Michel Attoui, Xiangyu Pei, Mario Amo-González, Kewei Zhang, and Zhibin Wang

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Cited articles

Ahonen, L., Li, C., Kubecka, J., Iyer, S., Vehkamaki, H., Petaja, T., Kulmala, M., and Hogan, C. J.: Ion mobility-mass spectrometry of iodine pentoxide-iodic acid hybrid cluster Anions in dry and humidified atmospheres, J. Phys. Chem. Lett., 10, 1935–1941,, 2019. 
Amo-González, M. and Fernández de la Mora, J.: Mobility peak tailing reduction in a differential mobility analyzer (DMA) coupled with a mass spectrometer and several ionization sources, J. Am. Soc. Mass Spectrom., 28, 1506–1517,, 2017. 
Amo-González, M. and Pérez, S.: Planar Differential Mobility Analyzer with a Resolving Power of 110, Anal. Chem., 90, 6735–6741, 2018. 
Attoui, M. and Fernandez de la Mora, J.: Flow driven transmission of charged particles against an axial field in antistatic tubes at the sample outlet of a Differential Mobility Analyzer, J. Aerosol Sci., 100, 91–96, 2016. 
Short summary
Planar differential mobility analyzers (DMAs) have higher ion transmission efficiency and sizing resolution compared to cylindrical DMAs and are more suitable for use with mass spectrometers (MSs). Performance of the latest planar DMA (P5) was characterized. Sizing resolution and ion transmission efficiency were 5–16 times and ∼10 times higher than cylindrical DMAs. Sulfuric acid clusters were measured by DMA(P5)-MSs. This technique can be applied for natural products and biomolecule analysis.