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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 1
BKCSDE 31(1)
January 20, 2010

Title	Detection of Small Neutral Carbohydrates Using Various Supporting Materials in Laser Desorption/Ionization Mass Spectrometry
Author	Hyo Jik Yang, Aera Lee, Myung Ki Lee, Woong Kim, Jeongkwon Kim*
Keywords	Carbohydrate, Laser desorption ionization, Ionic liquid matrix, MALDI, Binary matrix
Abstract	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.
Page	35 - 40
Full Text	PDF

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