Electrochemical Fingerprint of Arsenic (III) by Using Hybrid Nanocomposite-Based Platforms.
Gheorghe MelinteOana HosuMariagrazia LettieriCecilia CristeaGiovanna MarrazzaPublished in: Sensors (Basel, Switzerland) (2019)
Arsenic, one of the most abundant mineral and also one to the most toxic compounds. Due to its high toxicity sensitive analytical methods are highly important, taking into account that the admitted level is in the range of µg L-1. A novel and easy to use platform for As(III) detection from water samples is proposed, based on gold and platinum bi metallic nanoparticles and a conductive polymer (polyaniline). The electrochemical detection was achieved after optimization of cathodic pre-concentration and stripping parameters by square wave anodic stripping voltammetry at modified screen-printed carbon-based electrochemical cells, proving its applicability for disposable and cost-effective in situ analysis of arsenic.
Keyphrases
- label free
- gold nanoparticles
- reduced graphene oxide
- drinking water
- molecularly imprinted
- heavy metals
- ionic liquid
- high throughput
- induced apoptosis
- loop mediated isothermal amplification
- solid phase extraction
- real time pcr
- cell cycle arrest
- oxidative stress
- carbon nanotubes
- cell death
- risk assessment
- signaling pathway
- liquid chromatography
- low cost
- sensitive detection