Analytical methods for sensing of health-hazardous arsenic from biotic and abiotic natural resources

Abstract

The existence of arsenic in biotic and abiotic samples poses severe health threats globally.

Green synthesis of surface-passivated carbon dots from the prickly pear cactus as a fluorescent probe for the dual detection of arsenic(iii) and hypochlorite ions from drinking water

“…Arsenic contamination has been found to have signicantly increased in the environment as a result of industrialization, urbanization, the use of additives in poultry feed, and by agricultural activity. [1][2][3] The World Health Organization announced the presence of As 3+ ions in natural water beyond 10 ppb as a global environmental problem, which has attracted the attention of the research community. The U.S. Environmental Protection Agency and International Association for Research into Cancer have classied As 3+ as a Group A and Category 1 human carcinogen.…”

Determinación Espectrofotométrica De Especies Inorgánicas Arsenicales (Iii) Y (V) en Agua Usando El Método Del Azul De Molibdeno.

“…Los métodos aprobados incluyen la espectrometría de masas con plasma acoplado por inducción (ICP-MS), espectrometría de emisión atómica con plasma acoplado por inducción (ICP-AES), absorción atómica con horno de grafito (GFAAS) y espectrometría de absorción atómica con generador de hidruros (HGAAS), cuyos límites de detección (LD) comprenden un intervalo de 0.5 a 50 mg/L (Martinez et al 2005). Si bien todos estos métodos cumplen con la mayoría de los parámetros de calidad analítica necesaria para la determinación del elemento a nivel de ultra trazas, los instrumentos utilizados son voluminosos y con altos costos de operación y mantenimiento (Ma et al 2014, Dhillon et al 2015. Por tanto, no son convenientes para un monitoreo continuo.…”

“…En consecuencia, se necesita un método de detección rápido y simple para el análisis de As en el agua potable y de efluentes de plantas de eliminación de As. Una herramienta de monitoreo rápido puede ser útil, incluso, para la investigación de campo, adicional a las técnicas comerciales existentes (Kiso et al 2015, Dhillon et al 2015.…”

Gold Nano Particle and Reduced Graphene Oxide Composite Modified Carbon Paste Electrode for the Ultra Trace Detection of Arsenic (III)

“…Electrochemical method of determination of As is best suited in terms of easy instrumentation and field applicability using modified electrode. There have been enormous different ways of modification procedure investigated and several reviews are published on the determination of arsenic [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38], Carbon based electrode modified with gold nano particles has the advantage over other modified electrodes due to their ability to decrease the interferences from organic matrices and the interference due to some commonly occurring metal ions [39][40][41][42][43][44][45]. In two recent publications reduced graphene oxide and gold nano particles composite modified glassy carbon and thoria nano particles modified carbon paste electrodes were used for the determination of arsenic [46,47].…”