Determination of heavy metal pollutants in water samples using laser induced breakdown spectroscopy
Source abstract
Abstract
The contamination of water by heavy metals poses a serious risk to human health and the environment. Hence, the detection of heavy metal elements in water holds significant importance. The present study depicts the effectiveness of the laser-induced breakdown spectroscopy (LIBS) technique for analyzing heavy metal elements, including lead (Pb), chromium (Cr), iron (Fe), and zinc (Zn), in liquids. In order to increase the sensitivity and accuracy of liquid sample analysis, the experimental parameters, including laser fluence and acquisition delay, have been optimized. A calibration-based LIBS approach was employed and to generate the calibration curves, reference solution samples were prepared by varying the metal concentration between 1 and 25 mg/l. The linear correlation coefficients of Cr, Fe, Zn, and Pb were all greater than 0.97, with absolute detection limits in the range between 0.08 and 0.18 mg/l. The comparison of results with previous studies indicates that the proposed method successfully attains lower detection limits for the elements being investigated. The proposed methodology has been employed to quantify heavy metal elements in natural water samples, including river water and wastewater.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Laser-induced spectroscopy and plasma · Analytical chemistry methods development · Mercury impact and mitigation studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Pandit Deendayal Energy University 1 , Gandhinagar 382426,
Physical Research Laboratory 2 , Ahmedabad 380009, Gujarat,
References (52)
Show source-provided references
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