Application of a new adhesive elastomeric coating and hydrophilic-lipophilic-balanced sorbent for modified stir-bar sorptive extraction

A new polyurethane adhesive was evaluated to fix a hydrophilic-lipophilic-balanced sorbent and to produce modified stir-bars. It presented high mechanical and chemical resistance, indicating that it is an adequate adhesive. The homemade bars were employed to determine bisphenol A, diclofenac, ibupro...

Full description

Saved in:
Bibliographic Details
Published in:Analytical methods 2020-12, Vol.12 (48), p.5815-5822
Main Authors: Teixeira, Natascha A, Miyazaki, Duanne M. S, Grassi, Marco T, Zawadzki, Sônia F, Abate, Gilberto
Format: Article
Language:English
Subjects:
Adhesion tests
Adhesives
Analytical chemistry
Aqueous solutions
Bars
Bisphenol A
Diclofenac
Elastomers
Hydrophilicity
Ibuprofen
Lipophilic
Lipophilicity
Polyurethane
Polyurethane resins
Sorbents
Triclosan
Water analysis
Water sampling
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new polyurethane adhesive was evaluated to fix a hydrophilic-lipophilic-balanced sorbent and to produce modified stir-bars. It presented high mechanical and chemical resistance, indicating that it is an adequate adhesive. The homemade bars were employed to determine bisphenol A, diclofenac, ibuprofen and triclosan in aqueous medium. Satisfactory figures of merit were observed, with LOD between 0.06 and 0.30 ng mL −1 and enrichment factors between 133 and 195 times, using an extraction time of 2 h. The stir-bars were employed to determine the four analytes in water samples, presenting recovery results from 53 to 135% and RSD between 0.7 and 20%. In general, the results observed here indicated that the adhesive is an appropriate alternative material to fix HLB particles, and could probably be applied to other sorbents. A new adhesive was employed to fix HLB sorbent in stir-bars, providing high chemical/mechanical resistance and appropriate performance.
ISSN:1759-9660
1759-9679
DOI:10.1039/d0ay01594f