TY - JOUR
T1 - Polymer with pendant diazo-coupling functionality for colorimetric detection of nitrates
AU - Kunduru, Konda Reddy
AU - Basu, Arijit
AU - Tsah, Tsadok
AU - Domb, Abraham J.
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017
Y1 - 2017
N2 - Most high-energy compounds contain nitrates. Visual onsite nitrate and nitrite ion detection is, therefore, important for security related issues. Visual also has applications in environmental and biomedical sciences. These ions are colorimetrically detected by diazo coupling reaction between N-(1-naphthyl)ethylenediamine and sulfanilamide (known as the Griess reagent). We report on the synthesis of a polymer with N-(1-naphthyl)ethylenediamine and sulfanilamide side chains (mimicking the Griess reagent). The polymer matrix was further doped with zinc powder that reduces the nitrate ions to nitrite, thus initiating a diazotization reaction. The resultant diazo-coupled product produces a visually distinguishable color change to low nitrate concentration (∼4 ppm).
AB - Most high-energy compounds contain nitrates. Visual onsite nitrate and nitrite ion detection is, therefore, important for security related issues. Visual also has applications in environmental and biomedical sciences. These ions are colorimetrically detected by diazo coupling reaction between N-(1-naphthyl)ethylenediamine and sulfanilamide (known as the Griess reagent). We report on the synthesis of a polymer with N-(1-naphthyl)ethylenediamine and sulfanilamide side chains (mimicking the Griess reagent). The polymer matrix was further doped with zinc powder that reduces the nitrate ions to nitrite, thus initiating a diazotization reaction. The resultant diazo-coupled product produces a visually distinguishable color change to low nitrate concentration (∼4 ppm).
KW - Griess test
KW - N-(1-Naphthyl) ethylenediamine
KW - Nitrate
KW - Polymer based detection systems
KW - Sulfanilamide
UR - http://www.scopus.com/inward/record.url?scp=85019232808&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2017.05.013
DO - 10.1016/j.snb.2017.05.013
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AN - SCOPUS:85019232808
SN - 0925-4005
VL - 251
SP - 21
EP - 26
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
ER -