Articles | Volume 24, issue 12
https://doi.org/10.5194/acp-24-7001-2024
https://doi.org/10.5194/acp-24-7001-2024
Technical note
 | 
18 Jun 2024
Technical note |  | 18 Jun 2024

Technical note: Determining chemical composition of atmospheric single particles by a standard-free mass calibration algorithm

Shao Shi, Jinghao Zhai, Xin Yang, Yechun Ruan, Yuanlong Huang, Xujian Chen, Antai Zhang, Jianhuai Ye, Guomao Zheng, Baohua Cai, Yaling Zeng, Yixiang Wang, Chunbo Xing, Yujie Zhang, Tzung-May Fu, Lei Zhu, Huizhong Shen, and Chen Wang

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Cited articles

Anders, L., Schade, J., Rosewig, E. I., Kröger-Badge, T., Irsig, R., Jeong, S., Bendl, J., Saraji-Bozorgzad, M. R., Huang, J.-H., Zhang, F.-Y., Wang, C. C., Adam, T., Sklorz, M., Etzien, U., Buchholz, B., Czech, H., Streibel, T., Passig, J., and Zimmermann, R.: Detection of ship emissions from distillate fuel operation via single-particle profiling of polycyclic aromatic hydrocarbons, Environ. Sci.: Atmos., 3, 1134–1144, https://doi.org/10.1039/D3EA00056G, 2023. 
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Boskamp, T., Lachmund, D., Casadonte, R., Hauberg-Lotte, L., Kobarg, J. H., Kriegsmann, J., and Maass, P.: Using the Chemical Noise Background in MALDI Mass Spectrometry Imaging for Mass Alignment and Calibration, Anal. Chem., 92, 1301–1308, https://doi.org/10.1021/acs.analchem.9b04473, 2020. 
Chen, Y., Kozlovskiy, V., Du, X., Lv, J., Nikiforov, S., Yu, J., Kolosov, A., Gao, W., Zhou, Z., Huang, Z., and Li, L.: Increase of the particle hit rate in a laser single-particle mass spectrometer by pulse delayed extraction technology, Atmos. Meas. Tech., 13, 941–949, https://doi.org/10.5194/amt-13-941-2020, 2020. 
Chudinov, A., Li, L., Zhou, Z., Huang, Z., Gao, W., Yu, J., Nikiforov, S., Pikhtelev, A., Bukharina, A., and Kozlovskiy, V.: Improvement of peaks identification and dynamic range for bi-polar Single Particle Mass Spectrometer, Int. J. Mass Spectrom., 436, 7–17, https://doi.org/10.1016/j.ijms.2018.11.013, 2019. 
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The determination of ions in the mass spectra of individual particles remains uncertain. We have developed a standard-free mass calibration algorithm applicable to more than 98 % of ambient particles. With our algorithm, ions with ~ 0.05 Th mass difference could be determined. Therefore, many more atmospheric species could be determined and involved in the source apportionment of aerosols, the study of chemical reaction mechanisms, and the analysis of single-particle mixing states.
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