PMID- 32929827 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20201215 LR - 20201215 IS - 1097-0231 (Electronic) IS - 0951-4198 (Linking) VI - 35 IP - 1 DP - 2021 Jan 15 TI - Resolution enhancement of overlapping peaks of ion mobility spectrometry based on improved particle swarm optimization algorithm. PG - e8935 LID - 10.1002/rcm.8935 [doi] AB - RATIONALE: Ion mobility spectrometry (IMS) is a powerful analytical tool that has been widely applied in many fields. However, the limited structural resolution of IMS results in peak overlapping in the analysis of samples with similar structures. We propose a novel method, improved particle swarm optimization (IPSO), for the separation of IMS overlapping peaks. METHODS: This method, which prevents local optimization, is used to identify the peak model coefficients of IMS. Moreover, we use the half-peak width characteristics of IMS to determine the particle position range, which eliminates impossible combinations of single peaks and reduces the difficulty of identification of coefficients. RESULTS: During a comparison in performance between IPSO and the genetic algorithm (GA), the results show that the maximum separation error of IPSO is only 1.45%, while the error of the GA is up to 17.43%. Moreover, the time consumed by IPSO is 95% less than that of the GA, and IPSO has a greater robustness under the same separation error conditions. CONCLUSIONS: The method proposed provides accurate analytical results in separating overlapping IMS peaks even in cases of severe overlaps, which greatly enhances the structural resolution of IMS. CI - (c) 2020 John Wiley & Sons, Ltd. FAU - Zhang, Shulei AU - Zhang S AUID- ORCID: 0000-0002-3038-7635 AD - Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, China. AD - Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, China. FAU - Li, Junhui AU - Li J AD - Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, China. AD - Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, China. FAU - Xie, Chengyi AU - Xie C AD - Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, China. AD - Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, China. FAU - Wu, Qidi AU - Wu Q AD - Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, China. AD - Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, China. FAU - Yu, Jiancheng AU - Yu J AD - Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, China. AD - Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, China. FAU - Tang, Keqi AU - Tang K AUID- ORCID: 0000-0003-0316-6850 AD - Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, China. AD - School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China. LA - eng GR - 2018B10075/Science and Technology Major Project of Ningbo/ GR - 422004582/Special research funding from the Marine Biotechnology and Marine Engineering Discipline Group in Ningbo University/ GR - 2020C03064/Key Research and Development Program of Zhejiang/ GR - 61971248/National Natural Science Foundation of China/ PT - Journal Article PL - England TA - Rapid Commun Mass Spectrom JT - Rapid communications in mass spectrometry : RCM JID - 8802365 SB - IM EDAT- 2020/09/16 06:00 MHDA- 2020/09/16 06:01 CRDT- 2020/09/15 05:52 PHST- 2020/06/25 00:00 [received] PHST- 2020/08/12 00:00 [revised] PHST- 2020/08/26 00:00 [accepted] PHST- 2020/09/16 06:00 [pubmed] PHST- 2020/09/16 06:01 [medline] PHST- 2020/09/15 05:52 [entrez] AID - 10.1002/rcm.8935 [doi] PST - ppublish SO - Rapid Commun Mass Spectrom. 2021 Jan 15;35(1):e8935. doi: 10.1002/rcm.8935.