کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1186020 963422 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nutrition analysis by nanoparticle-assisted laser desorption/ionisation mass spectrometry
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Nutrition analysis by nanoparticle-assisted laser desorption/ionisation mass spectrometry
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 123, Issue 3, 1 December 2010, Pages 865–871
نویسندگان
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