Selective desorption/ionization of sulfatides by MALDI-MS facilitated using 9-aminoacridine as matrix.

Journal of Lipid Research
Hua ChengXianlin Han

Abstract

Recently, we used the favorable properties of 9-aminoacridine (9-AA) as matrix for the quantitative analysis of acidic metabolites and glycerophospholipids from extracts of biological materials [Sun, G., Yang, K., Zhao, Z., Guan, S., Han, X., and Gross, R.W. (2007) A shotgun metabolomics approach for rapid analysis of negatively-charged water-soluble cellular metabolites from mouse heart tissue. Anal. Chem. 79: 6629-6640; Sun, G., Yang, K., Zhao, Z., Guan, S., Han, X., and Gross, R.W. (2008) Matrix-assisted laser desorption/ionization-time of flight mass spectrometric analysis of cellular glycerophospholipids enabled by multiplexed solvent dependent analyte-matrix interactions. Anal. Chem. 80: 7576-7585.] by MALDI-MS. Herein, we extend this discovery and identified the selective desorption/ionization of sulfatides over other examined anionic lipids present in lipid extracts of biological samples by MALDI-MS using 9-AA as matrix. Through this approach, a high throughput method for the quantitative analysis of low to very low abundance sulfatide molecular species directly from crude lipid extracts has been developed. This method possessed a linear dynamic range of over 1,000-fold, a detection limit at the high attomole level, and...Continue Reading

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Citations

Mar 2, 2011·Analytical and Bioanalytical Chemistry·Christian MarschingCarsten Hopf
Jun 12, 2010·Journal of Lipid Research·Roberto AngeliniAngela Corcelli
Jan 8, 2014·Molecular Neurobiology·Chunyan WangXianlin Han
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