Document Detail


Measurement of sugars using the laser spray technique with a gold capillary.
MedLine Citation:
PMID:  18634124     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
A gold (Au) capillary has higher thermal conductivity than a stainless steel capillary and can withstand capillary over-heating induced by high CO(2) laser irradiation (over 2.5 W) better than a stainless steel capillary. For this study, a laser spray using an Au capillary was applied for the detection of sugars. The signal of cationized compounds [M+Na](+) can be detected with higher sensitivity than with conventional laser sprays using high laser power (over 2.7 W). Using 3.5 W of laser power, the signal intensity is 15 times higher than the maximum value with stainless steel (2.3 W) in a 10(-5) M maltose aqueous solution. It is considered that almost all the water molecules evaporate by laser irradiation, which is impossible to achieve using a stainless steel capillary.
Authors:
Atsushi Takamizawa; Hiroaki Maeda; Shizuka Kambara; Hiroko Furuya; Kenzo Hiraoka
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Rapid communications in mass spectrometry : RCM     Volume:  22     ISSN:  0951-4198     ISO Abbreviation:  Rapid Commun. Mass Spectrom.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-31     Completed Date:  2008-09-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802365     Medline TA:  Rapid Commun Mass Spectrom     Country:  England    
Other Details:
Languages:  eng     Pagination:  2453-6     Citation Subset:  -    
Copyright Information:
Copyright (c) 2008 John Wiley & Sons, Ltd.
Affiliation:
Clean Energy Research Center, University of Yamanashi, Takeda-4, Kofu 400-8511, Japan. atsushit@tmu.ac.jp
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