Electrokinetic Manipulations Combined With Direct and Ambient Ionization Mass Spectrometry

NE Manicke, L Wedasingha… - Mass Spectrometry …, 2024 - Wiley Online Library
Mass spectrometry (MS) is a powerful analytical technique that typically involves sample
preparation and online analytical separation before MS detection. Traditional methods often …

Desalting strategies for native mass spectrometry

Y Li, W Li, Y Zheng, T Wang, R Pu, Z Zhang - Talanta, 2024 - Elsevier
In native mass spectrometry (MS) salts are indispensable for preserving the native structures
of biomolecules, but detrimental to mass sensitivity, resolution, and accuracy. Such a conflict …

Direct Analysis of Micro-biopsy Samples by Polarity Gradient Focusing Dip-and-Go Mass Spectrometry

J Han, X Wang, W Wang, J Chen, B Xu… - Analytical …, 2023 - ACS Publications
Direct analysis of micro-biopsy samples by mass spectrometry at single-cell level still faces
major challenges. In this work, we developed a polarity gradient focusing dip-and-go …

Electrophoretic desalting to improve performance in electrospray ionization mass spectrometry

Z Zhang, CJ Pulliam, T Flick, RG Cooks - Analytical chemistry, 2018 - ACS Publications
Mass spectrometers are sensitive tools used to identify and quantify both small and large
analytes using the mass-to-charge ratios (m/z) of ions generated by electrospray ionization …

Mechanistic study of CBT-Cys click reaction and its application for identifying bioactive N-terminal cysteine peptides in amniotic fluid

Z Zheng, P Chen, G Li, Y Zhu, Z Shi, Y Luo, C Zhao… - Chemical …, 2017 - pubs.rsc.org
CBT-Cys click condensation reaction has a high second-order reaction rate constant and
has found wide applicability in recent years. However, its reaction mechanism has not been …

Nanosecond photochemically promoted click chemistry for enhanced neuropeptide visualization and rapid protein labeling

G Li, F Ma, Q Cao, Z Zheng, K DeLaney, R Liu… - Nature …, 2019 - nature.com
Comprehensive protein identification and concomitant structural probing of proteins are of
great biological significance. However, this is challenging to accomplish simultaneously in …

In situ living cell protein analysis by single-step mass spectrometry

G Li, S Yuan, S Zheng, Y Liu, G Huang - Analytical chemistry, 2018 - ACS Publications
In situ living cell protein analysis would enable the structural identification and functional
interrogation of intracellular proteins in native cellular environments. Previously, we have …

Characterizing and alleviating ion suppression effects in atmospheric pressure matrix‐assisted laser desorption/ionization

G Li, Q Cao, Y Liu, K DeLaney, Z Tian… - Rapid …, 2019 - Wiley Online Library
Rationale As a powerful ambient ion source, atmospheric pressure (AP) matrix‐assisted
laser desorption/ionization (MALDI) enables direct analysis at atmospheric …

Binding states of protein–metal complexes in cells

G Li, S Yuan, Y Pan, Y Liu, G Huang - Analytical chemistry, 2016 - ACS Publications
The identification of endogenous proteins as well as their binding to metal ions in living cells
is determined by combining pulsed electrophoretic separations with nanoelectrospray …

Applications of ambient electric arc ionization mass spectrometry in saline samples

Y Li, Y Gao, B Zhan, W Chen, F Chu, H Feng… - Chinese Chemical …, 2022 - Elsevier
Salinity tolerance of ambient electric arc ionization (AEAI) was evaluated by comparing
electrospray ionization for various samples at NaCl concentrations from 0 to 1000 mmol/L …