Introducing Nafion for In Situ Desalting and Biofluid Profiling in Spray Mass Spectrometry.
Introducing Nafion for In Situ Desalting and Biofluid Profiling in Spray Mass Spectrometry.
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DOI:
10.3389/fchem.2021.807244
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发表时间:
2021
影响因子:
5.5
通讯作者:
Zare RN
中科院分区:
文献类型:
--
作者:
Song X;Mofidfar M;Zare RN
We introduce Nafion into the ambient ionization technique of spray mass spectrometry to serve for in situ desalting and direct analysis of biological fluids. Nafion was coated onto the surface of the triangular spray tip as the cation exchange material. Because the sulfonic group from the Nafion membrane effectively exchanges their carried protons with inorganic salt ions (e.g., Na+ and K+), the analyte’s ionization efficiency can be significantly enhanced by reducing ion suppression. The desalting efficiency can reach 90% and the maximum tolerance of the absolute salt amount reaches 100 μmol. The mass spectral profile can also be simplified by removing the multiple adducted ion types from small-molecule drugs and metabolites ([M + Na]+ and [M + K]+), or multiply charged ions formed by proteins ([M + nNa]n+ and [M + nK]n+). Thus, the Nafion coating makes less ambiguous data interpretation collected from spray mass spectrometry for qualitative profiling or quantitative measurement of a target analyte.
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DOI:
10.1021/jasms.0c00310
发表时间:
2020-10-07
影响因子:
3.2
作者:
Wang Q;Bhattarai M;Zhao P;Alnsour T;Held M;Faik A;Chen H
通讯作者:
Chen H
影响因子:
16.6
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Pruski P;Correia GDS;Lewis HV;Capuccini K;Inglese P;Chan D;Brown RG;Kindinger L;Lee YS;Smith A;Marchesi J;McDonald JAK;Cameron S;Alexander-Hardiman K;David AL;Stock SJ;Norman JE;Terzidou V;Teoh TG;Sykes L;Bennett PR;Takats Z;MacIntyre DA
通讯作者:
MacIntyre DA
影响因子:
2.3
作者:
Song, Xiaowei;Chen, Hao;Zare, Richard N.
通讯作者:
Zare, Richard N.
影响因子:
2
作者:
BAI, J;LIU, YH;SIEMIENIAK, D
通讯作者:
SIEMIENIAK, D
影响因子:
7.4
作者:
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通讯作者:
Kipper, Karin