A comprehensive comparative investigation of small carbohydrates in laser desorption ionization was performed on supporting materials composed of sodiated 2,5-dihydroxybenzoic acid (DHB), carbon nanotubes, an ionic liquid matrix of DHB-pyridine, a binary matrix of DHB-aminopyrazine, zinc oxide nanoparticles, and gold nanoparticles. The abundance of [M+Na]+ ions, where M is glucose or sucrose, was compared for each supporting material. The highest sensitivity for both glucose and sucrose, with a detection limit of 3 pmol, was observed with carbon nanotubes. Both carbon nanotubes and the ionic liquid matrix exhibited the highest reproducibility.
|Number of pages||6|
|Journal||Bulletin of the Korean Chemical Society|
|Publication status||Published - 2010 Jan|
- Binary matrix
- Ionic liquid matrix
- Laser desorption ionization
ASJC Scopus subject areas