MIPs logo MIPdatabase      Use this space
Custom Search
Reference type: Journal
Authors: de Lima GC, do Lago AC, Chaves AA, Fadini PS, Luccas PO
Article Title: Determination of selenium using atomically imprinted polymer (AIP) and hydride generation atomic absorption spectrometry.
Publication date: 2013
Journal: Analytica Chimica Acta
Volume: 768
Page numbers: 35-40.
DOI: 10.1016/j.aca.2013.01.051
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0003267013001992

Abstract: This paper describes selenium determination based on Se0 preconcentration in the imprinted polymer (synthesized with 2.25 mmol SeO2, 4-vinylpyridine and 1-vinylimidazole) with subsequent detection on-line in HG-FAAS. During the synthesis, SeO2 is reduced to Se (0). Therefore, there are no MIP neither IIP in the present work, thus we denominated: AIP, i.e., atomically imprinted polymers. For the optimization of analytical parameters Doehlert design was used. The method presented limit of detection and limit of quantification of 53 and 177 ng L-1, respectively, and linear range from 0.17 up to 6 μg L-1 (r = 0.9936). The preconcentration factor (PF), consumptive index (CI) and concentration efficiency (CE) were 232; 0.06 mL and 58 min-1 respectively. The proposed method was successfully applied to determine Se in Brazil nuts (0.33 0.03 mg kg-1), apricot (0.46 0.02 mg kg-1), white bean (0.47 0.03 mg kg-1), rice flour (0.47 0.02 mg kg-1) and milk powder (0.22 0.01 mg kg-1) samples. It was possible to do 12 analyzes per hour. Accuracy was checked and confirmed by analyzing certified reference material (DORM-2, dogfish muscle), and samples precision was satisfactory with RSD lower than 10%
Template and target information: selenium, Se(0)
Author keywords: selenium, imprinted polymer, Hydride generation flame atomic absorption spectrometry, preconcentration


  I love MIPs apron  multi MIPs logo mug  British periodic table patriotic tote bag

Molecules Special Issue call      Appeal for information






 

Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.


Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:



Mickey Mouse 90th Anniversary banner