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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/9049

Title: Nutrition analysis by nanoparticle-assisted laser desorption/ionisation mass spectrometry
Authors: Sahashi, Yuko
Osaka, Issey
Taira, Shu
Keywords: Nanoparticle
laser desorption/ionization
mass spectrometry
food
panax ginseng
Issue Date: 2010
Publisher: Elsevier
Magazine name: Food Chemistry
Volume: 123
Number: 3
Start page: 865
End page: 871
DOI: 10.1016/j.foodchem.2010.05.008
Abstract: We analysed the bioactive compounds in Panax ginseng C.A. Meyer by using nanoparticle-assisted laser desorption/ionisation (nano-PALDI) mass spectrometry (MS). To this end, we prepared manganese oxide nanoparticles (d = 5.4 nm) and developed a nano-PALDI MS method to analyse the standard ginsenosides and identify these ginsenosides in an extract of P. ginseng. The nanoparticles served as an ionisation-assisting reagent in MS. The mass spectra did not show any background interference in the low-m/z range. Our pilot study showed that the nanoparticles could ionise the standard ginsenosides and also respective lipid and ginsenosides in the extract without the aid of chemical and liquid matrices used in conventional MS methods. Analysis of the post-source decay spectra obtained using nano-PALDI MS will yield information regarding the chemical structure of the analyte.
Rights: NOTICE: This is the author's version of a work accepted for publication by Elsevier. Yuko Sahashi, Issey Osaka and Shu Taira, Food Chemistry, 123(3), 2010, 865-871, http://dx.doi.org/10.1016/j.foodchem.2010.05.008
URI: http://hdl.handle.net/10119/9049
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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