Influence of polymer composition on the sensitivity towards nitrite and nitric oxide of colorimetric disposable test strips
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Other documents of the author: Fabregat Tena, Víctor; Burguete, M. Isabel; Galindo, Francisco; Luis, Santiago V.
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http://dx.doi.org/10.1007/s11356-016-8068-0 |
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Title
Influence of polymer composition on the sensitivity towards nitrite and nitric oxide of colorimetric disposable test stripsDate
2017-02Publisher
SpringerBibliographic citation
FABREGAT TENA, Víctor; BURGUETE AZCÁRATE, Francisco; GALINDO HONRUBIA, Francisco; LUIS LAFUENTE, Santiago Vicente. Influence of polymer composition on the sensitivity towards nitrite and nitric oxide of colorimetric disposable test strips. Environmental Science and Pollution Research (2017), v. 24, Issue 4, pp. 3448–3455Type
info:eu-repo/semantics/articlePublisher version
https://link.springer.com/article/10.1007/s11356-016-8068-0Subject
Abstract
The influence of polymer composition on the
sensitivity towards nitrite (NO
2
−
) and nitric oxide (NO)
of a series of 19 polymeric hydrogel films has been stud-
ied. The polymers, based on the hydrophilic monomer ... [+]
The influence of polymer composition on the
sensitivity towards nitrite (NO
2
−
) and nitric oxide (NO)
of a series of 19 polymeric hydrogel films has been stud-
ied. The polymers, based on the hydrophilic monomer 2-
hydroxyethylmethacrylate (HEMA), are able to encapsu-
late the colorimetric indicator 1,2-diaminoanthraquinone
(DAQ) and to respond to NO
2
−
and NO by visual chang-
es. In the case of nitrite, the calculated limits of detection
(LOD) for two of the polymeric sensors (10
μ
M) are
very close to the sensitivity estimated for free DAQ in
solution (LOD 5
μ
M), but with the advantage of a solid
supported sensor with the format of a disposable
test-
strip
made with affordable starting chemicals. The re-
sults are interpreted taking
into account the nature and
proportions of monomers and cross-linkers used for the
synthesis of polymers. Key factors for obtaining sensi-
tive materials are the hydro
philic character of the film
along with the utilization of low levels of cross-linker
and the use of an acidic monomer, like acrylic acid, as
a building block. [-]
Is part of
Environmental Science and Pollution Research (2017), v. 24, Issue 4Rights
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info:eu-repo/semantics/restrictedAccess
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