Authors
R. Tafesse
Abstract
The toxicity of heavy metals (As, Hg, Cu, Zn, Cd etc.) has been made a major problem in these days because they give effect on the health of humans. In these metals, the quantity of arsenic is increasing in the drinking ground water due to the use of arsenic as pesticides, mining application, and wood preservation. Arsenic found in two forms: organic and inorganic. The level of inorganic arsenic in ground water is more compare to the organic arsenic form. Due to the exposure of arsenic, various types of health issue are produced such as cancer, cardiovascular disorder, neurological disorder, skin diseases and so on. So, there is need to reduce the quantity of arsenic in the water as well as from the environment. Different analytical techniques has been discovered for the identification of arsenic. But these techniques are low sensitive because of the low limit of detection (LOD). This review paper shows the current status of arsenic in the world and the disease caused by it. Also present the detection method for the arsenic in ground water with future perspective. Keywords: Arsenic, Groundwater, Detection Techniques, LOD
Introduction
Metal ‘Arsenic (As)’ is toxic substance that gives health problems in humans. It is abundant element in the environment. It is generated mostly from the weathering of arsenic containing minerals while human activities produce less. The different types of health issues are caused by the exposure to arsenic. It is highly toxic in nature and carcinogenic due to which concern is raised. Its characteristics as steel grey, very brittle, crystalline in nature and it is oxidized on rapid heating and forms arsenous oxide, have the garlic smell. Arsenic toxicity depends on the chemical form as the inorganic form is less toxic compare to the organic form.
Chemical Forms of Arsenic element is already defined with their isotopic composition, electronic or oxidative state, inorganic and organic compounds, organometallic species and macromolecular compound. Generally, four oxidation states of arsenic, As3+, As5+, As0 and As3- occur in the environment. Arsenite As (III) and Arsenate As (V) are the forms comes under inorganic arsenic. Monomethyl-Arsonic Acid (MMA) and Dimethylarsinic Acid (DMA) are the Organoarsenic that occur mostly in the environment.
References
Bose, U., et al. “Arsenic Toxicity and Speciation Analysis in Ground Water Samples: A Review of Some Techniques.” International Journal of Chemical Technology, vol. 3, no. 1, Jan. 2011, pp. 14–25.
Komorowicz, Izabela, and Danuta Barałkiewicz. “Determination of Total Arsenic and Arsenic Species in Drinking Water, Surface Water, Wastewater, and Snow from Wielkopolska, Kujawy-Pomerania, and Lower Silesia Provinces, Poland.” Environmental Monitoring and Assessment, vol. 188, no. 9, Apr. 2016.
Maria, Guţu Claudia, et al. “Quantitative Determination of Arsenic in Bottled Drinking Water Using Atomic Absorption Spectroscopy.” Acta Medica Marisiensis, vol. 59, no. 5, Jan. 2013.
Rajaković, Ljubinka V, et al. “Analytical Methods for Arsenic Speciation Analysis.” Journal of the Serbian Chemistry Society, vol. 78, no. 10, 2013, pp. 1461–1469.
Rajkumar, Muniyandi, et al. “Electrochemical Detection of Arsenic in Various Water Samples.” International Journal of Electrochemical Science, vol. 6, 2011, pp. 3164–3177.
Sarkar, B, et al. “Comparative Analysis of Arsenic Detection in Water by Field Test Kit and AAS Methods.” Journal of Experimental Sciences, vol. 2, no. 1, 2011, pp. 38–41.
Shahlaei, Mohsen, and Alireza Pourhossein. “Determination of Arsenic in Drinking Water Samples by Electrothermal Atomic Absorption Spectrometry after Preconcentration Using the Biomass OfAspergillus NigerLoaded on Activated Charcoal.” Journal of Chemistry, vol. 2014, 2014, pp. 1–6.
Singh, Nahar, et al. “Determination of Arsenic and Mercury Metals in Suspended Particulate Matter by Flame/Flameless Atomic Absorption Spectrometer.” Atmospheric Pollution Research, vol. 1, no. 2, 2010, pp. 112–117.
Tahir, M. A., et al. “Method Development for Arsenic Analysis by Modification in Spectrophotometric Technique.” Drinking Water Engineering and Science, vol. 5, no. 1, Apr. 2012, pp. 1–8.
How to cite this article?
| APA Style | Tafesse, R. (2019). Determination of Arsenic from the Atomic Absorption Spectroscopy. Academic Journal of Chemical Sciences, 1(1), 1-4. |
| Chicago Style | |
| MLA Style | |
| DOI | |
| URL |