Molecules 2012, 17(10), 11507-11537; doi:10.3390/molecules171011507
Review

The Expanding Role of Electrospray Ionization Mass Spectrometry for Probing Reactive Intermediates in Solution

1,†email, 2,†email, 1email, 1email, 1email, 1email, 1,* email and 1email
Received: 25 July 2012; in revised form: 29 August 2012 / Accepted: 5 September 2012 / Published: 27 September 2012
(This article belongs to the Special Issue Reactive Intermediates)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Within the past decade, electrospray ionization mass spectrometry (ESI-MS) has rapidly occupied a prominent position for liquid-phase mechanistic studies due to its intrinsic advantages allowing for efficient “fishing” (rapid, sensitive, specific and simultaneous detection/identification) of multiple intermediates and products directly from a “real-world” solution. In this review we attempt to offer a comprehensive overview of the ESI-MS-based methodologies and strategies developed up to date to study reactive species in reaction solutions. A full description of general issues involved with probing reacting species from complex (bio)chemical reaction systems is briefly covered, including the potential sources of reactive intermediate (metabolite) generation, analytical aspects and challenges, basic rudiments of ESI-MS and the state-of-the-art technology. The main purpose of the present review is to highlight the utility of ESI-MS and its expanding role in probing reactive intermediates from various reactions in solution, with special focus on current progress in ESI-MS-based approaches for improving throughput, testing reality and real-time detection by using newly developed MS instruments and emerging ionization sources (such as ambient ESI techniques). In addition, the limitations of modern ESI-MS in detecting intermediates in organic reactions is also discussed.
Keywords: intermediates; reactive metabolite; electrospray; ambient ionization; mass spectrometry; chemical trapping; solution
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MDPI and ACS Style

Zhu, W.; Yuan, Y.; Zhou, P.; Zeng, L.; Wang, H.; Tang, L.; Guo, B.; Chen, B. The Expanding Role of Electrospray Ionization Mass Spectrometry for Probing Reactive Intermediates in Solution. Molecules 2012, 17, 11507-11537.

AMA Style

Zhu W, Yuan Y, Zhou P, Zeng L, Wang H, Tang L, Guo B, Chen B. The Expanding Role of Electrospray Ionization Mass Spectrometry for Probing Reactive Intermediates in Solution. Molecules. 2012; 17(10):11507-11537.

Chicago/Turabian Style

Zhu, Weitao; Yuan, Yu; Zhou, Peng; Zeng, Le; Wang, Hua; Tang, Ling; Guo, Bin; Chen, Bo. 2012. "The Expanding Role of Electrospray Ionization Mass Spectrometry for Probing Reactive Intermediates in Solution." Molecules 17, no. 10: 11507-11537.


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