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Calibration Curve with Improved Limit of Detection for Cadmium in Soil: An Approach to Minimize the Matrix Effect in Laser-Induced Breakdown Spectroscopic Analysis

Pandhija, Shiwani and Rai, Nilesh K and Pathak, Ashok K and Rai, Awadhesh K and Choudhary, AK (2014) Calibration Curve with Improved Limit of Detection for Cadmium in Soil: An Approach to Minimize the Matrix Effect in Laser-Induced Breakdown Spectroscopic Analysis. In: SPECTROSCOPY LETTERS, 47 (8). pp. 579-589.

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Official URL: http://dx.doi.org/10.1080/00387010.2013.828758

Abstract

The present article describes a working or combined calibration curve in laser-induced breakdown spectroscopic analysis, which is the cumulative result of the calibration curves obtained from neutral and singly ionized atomic emission spectral lines. This working calibration curve reduces the effect of change in matrix between different zone soils and certified soil samples because it includes both the species' (neutral and singly ionized) concentration of the element of interest. The limit of detection using a working calibration curve is found better as compared to its constituent calibration curves (i.e., individual calibration curves). The quantitative results obtained using the working calibration curve is in better agreement with the result of inductively coupled plasma-atomic emission spectroscopy as compared to the result obtained using its constituent calibration curves.

Item Type: Journal Article
Additional Information: copyright for this article belongs to TAYLOR & FRANCIS INC, 520 CHESTNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
Keywords: laser-induced breakdown spectroscopy (LIBS); calibration curve; soil; matrix effect; limit of detection
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Id for Latest eprints
Date Deposited: 12 Jun 2014 08:57
Last Modified: 12 Jun 2014 09:00
URI: http://eprints.iisc.ac.in/id/eprint/49157

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