Gel microextraction from hydrophilic paint layers: A comparison between Agar-gel and Nanorestore Gel® HWR for spectroscopic identification of madder

[Display omitted] •Hydrogels are able to mildly extract dyes from hydrophilic paint layers.•The amount of dye extracted is enough for spectroscopic identification.•Lower hydrogel concentrations (Agar/water w/w 

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Bibliographic Details
Published in:Microchemical journal 2023-04, Vol.187, p.108447, Article 108447
Main Authors: Bosi, Adele, Ciccola, Alessandro, Serafini, Ilaria, Peruzzi, Greta, Nigro, Valentina, Postorino, Paolo, Curini, Roberta, Favero, Gabriele
Format: Article
Language:English
Subjects:
Ammonia-EDTA solution
Colorimetry
Dyes extraction
Hydrogels
Madder
SERS Raman
UV–vis spectroscopy
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Description
Summary:[Display omitted] •Hydrogels are able to mildly extract dyes from hydrophilic paint layers.•The amount of dye extracted is enough for spectroscopic identification.•Lower hydrogel concentrations (Agar/water w/w 
ISSN:0026-265X
1095-9149
DOI:10.1016/j.microc.2023.108447