Ion Mobility-Derived Collision Cross-Sections Add Extra Capability in Distinguishing Isomers and Compounds with Similar Retention Times: The Case of Aphidicolanes.

Ion Mobility-Derived Collision Cross-Sections Add Extra Capability in Distinguishing Isomers and Compounds with Similar Retention Times: The Case of Aphidicolanes.
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离子淌度衍生的碰撞截面增加了区分异构体和具有相似保留时间的化合物的额外能力:以 Aphidicolanes 为例

DOI:
10.3390/md20090541
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发表时间:
2022-08-23
期刊:
影响因子:
5.4
通讯作者:
Yang X
Yang X
中科院分区:
医学2区
文献类型:
--
作者:
Xia J;Xiao W;Lin X;Zhou Y;Qiu P;Si H;Wu X;Niu S;Luo Z;Yang X

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离子迁移谱与高分辨质谱联用已广泛应用于各种代谢物的表征。然而,这种强大的工具在天然产物研究中仍然很大程度上未被探索,可能主要是由于缺乏可用的化合物。为了评估碰撞截面(CCS)在表征化合物,特别是异构体的天然产物的能力,在这里,我们测量和比较了75个海洋衍生的aphidicolanes的行波IMS衍生的氮CCS值。我们建立了这些化合物的CCS数据库,其中包含227个不同加合物的CCS值。当比较CCS差异时,57对色谱相邻化合物中有36对(超过60%)显示ΔCCS超过2%。此外,在104个异构体对中,有64个(60%以上)可以通过CCS值区分,在18个色谱上无法区分的异构体对中,有13个(70%以上)可以通过迁移率维区分。我们的研究结果强烈支持CCS作为一个重要的参数,具有良好的正交性和互补性与保留时间。CCS有望在区分复杂多样的海洋天然产品方面发挥重要作用。
The hyphenation of ion mobility spectrometry with high-resolution mass spectrometry has been widely used in the characterization of various metabolites. Nevertheless, such a powerful tool remains largely unexplored in natural products research, possibly mainly due to the lack of available compounds. To evaluate the ability of collision cross-sections (CCSs) in characterizing compounds, especially isomeric natural products, here we measured and compared the traveling-wave IMS-derived nitrogen CCS values for 75 marine-derived aphidicolanes. We established a CCS database for these compounds which contained 227 CCS values of different adducts. When comparing the CCS differences, 36 of 57 pairs (over 60%) of chromatographically neighboring compounds showed a ΔCCS over 2%. What is more, 64 of 104 isomeric pairs (over 60%) of aphidicolanes can be distinguished by their CCS values, and 13 of 18 pairs (over 70%) of chromatographically indistinguishable isomers can be differentiated from the mobility dimension. Our results strongly supported CCS as an important parameter with good orthogonality and complementarity with retention time. CCS is expected to play an important role in distinguishing complex and diverse marine natural products.
DOI: 10.1021/acs.analchem.6b03381
发表时间: 2016-11-15
影响因子: 7.4
作者:
Regueiro, Jorge;Negreira, Noelia;Berntssen, Marc H. G.
通讯作者: Berntssen, Marc H. G.
DOI: 10.1021/acs.analchem.7b01709
发表时间: 2017-09-05
影响因子: 7.4
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发表时间: 2022-05-12
影响因子: 4.1
作者:
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DOI: 10.1007/978-1-0716-0030-6_4
发表时间: 2020-01-01
期刊: ION MOBILITY-MASS SPECTROMETRY: METHODS AND PROTOCOLS
影响因子: --
作者:
Causon, Tim J.;Kurulugama, Ruwan T.;Hann, Stephan
通讯作者: Hann, Stephan
DOI: 10.1016/s0021-9673(98)00486-5
发表时间: 1998-09-25
影响因子: 4.1
作者:
Lee, DS;Wu, C;Hill, HH
通讯作者: Hill, HH