Manavalan, Gopinathan
- Institutionen för skogens biomaterial och teknologi, Sveriges lantbruksuniversitet
- National Chung Hsing University, Xingda
- Umeå Universitet
Sammanfattning
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 mu m(-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.
Publicerad i
Industrial & Engineering Chemistry Research
2023, volym: 62, nummer: 44, sidor: 18271-18279
Utgivare: AMER CHEMICAL SOC
SLU författare
Thyrel, Mikael
- Institutionen för skogens biomaterial och teknologi, Sveriges lantbruksuniversitet
- Institutionen för skogens biomaterial och teknologi, Sveriges lantbruksuniversitet
Lestander, Torbjörn
- Institutionen för skogens biomaterial och teknologi, Sveriges lantbruksuniversitet
- Institutionen för skogens biomaterial och teknologi, Sveriges lantbruksuniversitet
UKÄ forskningsämne
Annan kemiteknik
Publikationens identifierare
- DOI: https://doi.org/10.1021/acs.iecr.3c02669
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/127339