TY - JOUR
T1 - Electrochemically Modified Poly(dicyandiamide) Electrodes for Detecting Hydrazine in Neutral pH
AU - Manavalan, Gopinathan
AU - Natarajan, Thiyagarajan
AU - Adeniyi, Kayode Omotayo
AU - Zen, Jyh Myng
AU - Tesfalidet, Solomon
AU - Thyrel, Mikael
AU - Lestander, Torbjörn A.
AU - Alla, Subba Reddy
AU - Mikkola, Jyri Pekka
N1 - Publisher Copyright:
© 2023 The Authors. Published by American Chemical Society.
PY - 2023/11/8
Y1 - 2023/11/8
N2 - A new technique for sensing nanomolar concentrations of hydrazine in water samples is reported. A screen-printed carbon electrode (SPCE) altered using an amine-azo functional group encompassing poly(dicyandiamide) is used in this study. The modified electrode exhibits an enhanced activity toward hydrazine detection at a lower overpotential and broad linear scale between 20 nM and 1 mM, with an accurate sensitivity value of 0.1 nA μm-1 cm-2. To the best of our knowledge, poly(dicyandiamide)-modified electrodes exhibit one of the lowest limits of detection for any metal-free electrode that detects 6.7 nM (S/N = 3) of hydrazine. The method established sufficient selectivity and better recoveries. Finally, the poly(dicyandiamide)-modified SPCE* is highly suitable for electrochemical determination of hydrazine in water samples from tap and lake.
AB - A new technique for sensing nanomolar concentrations of hydrazine in water samples is reported. A screen-printed carbon electrode (SPCE) altered using an amine-azo functional group encompassing poly(dicyandiamide) is used in this study. The modified electrode exhibits an enhanced activity toward hydrazine detection at a lower overpotential and broad linear scale between 20 nM and 1 mM, with an accurate sensitivity value of 0.1 nA μm-1 cm-2. To the best of our knowledge, poly(dicyandiamide)-modified electrodes exhibit one of the lowest limits of detection for any metal-free electrode that detects 6.7 nM (S/N = 3) of hydrazine. The method established sufficient selectivity and better recoveries. Finally, the poly(dicyandiamide)-modified SPCE* is highly suitable for electrochemical determination of hydrazine in water samples from tap and lake.
UR - http://www.scopus.com/inward/record.url?scp=85177814574&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.3c02669
DO - 10.1021/acs.iecr.3c02669
M3 - Article
AN - SCOPUS:85177814574
SN - 0888-5885
VL - 62
SP - 18271
EP - 18279
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 44
ER -