A TiO2 nanowire photocatalyst for dual-ion production in laser desorption/ionization (LDI) mass spectrometry

Moon-Ju Kim; Jong-Min Park; Tae Gyeong Yun; Joo-Yoon Noh; Min-Jung Kang; Jae-Chul Pyun

doi:10.1039/D0CC00866D

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A TiO₂ nanowire photocatalyst for dual-ion production in laser desorption/ionization (LDI) mass spectrometry†

Moon-Ju Kim,^a Jong-Min Park,^a Tae Gyeong Yun,^a Joo-Yoon Noh,^a Min-Jung Kang

^b and Jae-Chul Pyun

*^a

Author affiliations

* Corresponding authors

^a Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
E-mail: jcpyun@yonsei.ac.kr

^b Korea Institute of Science and Technology (KIST), Seoul, Republic of Korea

Abstract

It has been challenging to detect small analytes in both positive and negative ion modes using organic matrices in conventional matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Herein, TiO₂ nanowires are presented as a solid matrix to form dual ions of analytes regardless of their chemical properties and to demonstrate versatile applicability in LDI-MS.

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Article information

DOI: https://doi.org/10.1039/D0CC00866D
Article type: Communication
Submitted: 03 Feb 2020
Accepted: 11 Mar 2020
First published: 12 Mar 2020

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Chem. Commun., 2020,56, 4420-4423

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A TiO₂ nanowire photocatalyst for dual-ion production in laser desorption/ionization (LDI) mass spectrometry

M. Kim, J. Park, T. G. Yun, J. Noh, M. Kang and J. Pyun, Chem. Commun., 2020, 56, 4420 DOI: 10.1039/D0CC00866D

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Chemical Communications