Real-time mass-spectrometric screening of droplet-scale electrochemical reactions

Hong Zhang; Kai Yu; Na Li; Jing He; Lina Qiao; Ming Li; Yingying Wang; Dongmei Zhang; Jie Jiang; Richard N. Zare

doi:10.1039/C8AN00957K

Real-time mass-spectrometric screening of droplet-scale electrochemical reactions†

Hong Zhang,^a Kai Yu,^b Na Li,^b Jing He,^b Lina Qiao,^a Ming Li,^c Yingying Wang,^b Dongmei Zhang,^b Jie Jiang

*^b and Richard N. Zare

*^d

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* Corresponding authors

^a State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China

^b School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, China
E-mail: jiejiang@hitwh.edu.cn

^c Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing 100029, China

^d Department of Chemistry, Stanford University, Stanford, California 94305, USA
E-mail: zare@stanford.edu

Abstract

A droplet-scale, real-time electrochemical reaction screening platform based on droplet spray ionization mass spectrometry (DSI-MS) has been developed. The N,N-dimethylaniline (DMA) radical cation with a half-life of microseconds was readily detected by MS during the electrooxidation of DMA, and the subsequent reactions were followed in real time for minutes.

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Real-time mass-spectrometric screening of droplet-scale electrochemical reactions†

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