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Your search keyword '"Li, Ruijin"' showing total 2 results
Start Over Author "Li, Ruijin" Publication Year Range Last 10 years Publisher royal society of chemistry
2 results on '"Li, Ruijin"'

1. Magnetic graphene composites as both an adsorbent for sample enrichment and a MALDI-TOF MS matrix for the detection of nitropolycyclic aromatic hydrocarbons in PM2.5.

Author

Zhang, Jiangang, Zhang, Li, Li, Ruijin, Hu, Di, Ma, Nengxuan, Shuang, Shaomin, Cai, Zongwei, and Dong, Chuan

Subjects
*SORBENTS, *AROMATIC compound analysis, *MATRIX-assisted laser desorption-ionization, *GRAPHENE, *SIGNAL-to-noise ratio
Abstract

A simple and rapid method that uses synthesized magnetic graphene composites as both an adsorbent for enrichment and as a matrix in MALDI-TOF MS analysis was developed for the detection of nitropolycyclic hydrocarbons (nitro-PAHs) in PM2.5 samples. Three nitro-PAHs were detected down to sub pg μL−1 levels based on calculations from an instrumental signal-to-noise better than 3, which shows the feasibility of using the new materials in MALDI-TOF MS as a potential powerful analytical approach for the analysis of nitro-PAHs in PM2.5 samples. [ABSTRACT FROM AUTHOR]

Published
2015
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2. A magnetic covalent organic framework as an adsorbent and a new matrix for enrichment and rapid determination of PAHs and their derivatives in PM2.5 by surface-assisted laser desorption/ionization-time of flight-mass spectrometry.

Author

Zhang, Yanhao, Song, Yuanyuan, Wu, Jie, Li, Ruijin, Hu, Di, Lin, Zian, and Cai, Zongwei

Subjects
*MATRIX-assisted laser desorption-ionization, *SPECTROMETRY, *ENVIRONMENTAL sampling, *POLLUTANTS, *LASERS
Abstract

A magnetic covalent organic framework nanomaterial (Fe3O4@COFs) served as an adsorbent for enrichment and a new matrix for SALDI-TOF-MS analysis of PAHs and their derivatives in PM2.5. The unique properties of Fe3O4@COFs in terms of high enrichment ability and matrix-free interference made it possible for sensitive analysis of low-concentration organic small-molecule pollutants in complex environmental samples. [ABSTRACT FROM AUTHOR]

Published
2019
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