期刊
PHYTOCHEMISTRY
卷 139, 期 -, 页码 72-80出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2017.04.006
关键词
Rheum rhabarbarum; Polygonaceae; Rhubarb; Mass spectrometry imaging; Low molecular weight compounds; Gold nanoparticles
资金
- National Science Center (NCN Poland) [UMO-2015/19/N/ST4/00379]
Laser desorption/ionization mass spectrometry imaging (LDI-MSI) with gold nanoparticle-enhanced target (AuNPET) was used for visualization of small molecules in the rhubarb stalk (Rheum rhabarba-rum L.). Analysis was focused on spatial distribution of biologically active compounds which are found in rhubarb species. Detected compounds belong to a very wide range of chemical compound classes such as anthraquinone derivatives and their glucosides, stilbenes, anthocyanins, flavonoids, polyphenols, organic acids, chromenes, chromanones, chromone glycosides and vitamins. The analysis of the spatial distribution of these compounds in rhubarb stalk with the nanoparticle-rich surface of AuNPET target plate has been made without additional matrix and with minimal sample preparation steps. (C) 2017 Elsevier Ltd. All rights reserved.
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