Faculdade de Ciências e Tecnologia (FCT) >
FCT Departamentos >
FCT: Departamento de Física >
FCT: DF - Artigos em revista internacional com arbitragem científica >
Please use this identifier to cite or link to this item:
|Title: ||Non-volatile analysis in fruits by laser resonant ionization spectrometry: application to resveratrol (3,5,4 -trihydroxystilbene) in grapes|
|Authors: ||Lobo, R. F. M.|
Orea, J. M.
González Ureña, A.
Soledad Muñoz, M.
|Issue Date: ||May-2000|
|Abstract: ||A laser desorption (LD) coupled with resonanceenhanced multiphoton ionisation (REMPI) and time-of-flight mass spectrometry (TOFMS) technique for non-volatile trace
analysis compounds is presented. Essential features are: (a)an enhanced desorption yield due to the mixing of metal powder
with the analyte in the sample preparation, (b) a high resolution, great sensitivity and low detection limit due to laser resonant ionisation and mass spectrometry detection.
Application to resveratrol content in grapes demonstrated the capability of the analytical method with a sensitivity of 0.2 pg per single laser shot and a detection limit of 5 ppb.|
|Description: ||Applied Physics B Lasers and Optics, vol.71|
|Appears in Collections:||FCT: DF - Artigos em revista internacional com arbitragem científica|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.