Ultrathin quasi-hexagonal gold nanostructures for sensing arsenic in tap water
Anu Prathap M. Udayan, Batul Kachwala, K. G. Karthikeyan, Sundaram Gunasekaran
Abstract
. The presence of co-existing heavy metal cations such as lead, copper, and mercury did not interfere with the sensor response to As(iii). Furthermore, the voltammogram peaks for As(iii), lead, copper, and mercury were sufficiently separate for their potential simultaneous measurement, and at very harsh acidic pH it may be possible to detect As(v). The AuNPs/SPE could detect As(iii) in tap water samples at near-neutral pH, presenting potential possibilities for real-time, practical applications.
Topics & Concepts
Detection limitTap waterColloidal goldElectrochemical gas sensorMercury (programming language)ElectrochemistryArsenicLinear rangeCopperNanotechnologyHexagonal crystal systemChemistryElectrodeMaterials scienceInorganic chemistryNanoparticleAnalytical Chemistry (journal)Environmental chemistryChromatographyEnvironmental scienceMetallurgyEnvironmental engineeringCrystallographyComputer sciencePhysical chemistryProgramming languageArsenic contamination and mitigationElectrochemical Analysis and ApplicationsHeavy Metal Exposure and Toxicity