Towards a calibration-less ICP-AES method for the determination of trace elements in aqueous solutions: Double ratio plasma diagnostics combined with an internal standard
Authors: Tognoni E., Hidalgo M., Canals A., Cristoforetti G., Legnaioli S., Palleschi V.
Autors Affiliation: Istituto per i Processi Chimico-Fisici, Area della Ricerca del Consiglio Nazionale delle Ricerche, Via Moruzzi 1, 56124 Pisa, Italy;
Departamento de Quımica Analıtica, Nutricion y Bromatologıa, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
Abstract: We propose a calibration-less approach to determine the concentration of the analytes in a solution in Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). This approach is a variant of the calibration-free algorithm developed for Laser-Induced Breakdown Spectroscopy analysis. The method assumes that the plasma is in local thermodynamic equilibrium (LTE) and requires that plasma temperature and electron number density are spectroscopically measured. Since the excitation and ionization conditions of the plasma are taken into account, matrix effects don
Journal/Review: JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
Volume: 24 (5) Pages from: 655 to: 662
More Information: This work was partially funded by the Vicerrectorado de Relaciones Internacionales y Cooperacion de la Universidad de Alicante, through the \”Programa Propio para el Fomento de las Relaciones Internacionales de la UA\”. A. Canals and M. Hidalgo are grateful to the Spanish Ministry of Education and Science (PET2006-706-00, CTQ2005-09079-C03-01, RyC2003-2176, GV/2007/180), to Generalitat Valenciana (ACOMP07/053, RyC2003-2176) and to the University of Alicante (RyC2003-2176) for the financial support. The assistance provided by Mr. Clemente Santana Prieto in carrying out the ICP measurements is gratefully acknowledged. The authors want to express their gratefulness to Prof. Nicolo Omenetto for encouraging them to undertake this work.KeyWords: inductively coupled plasma (ICP); induced breakdown; atomic emission spectroscopy; laser induced plasma; temeperatureDOI: 10.1039/b822740cCitations: 10data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2023-09-17References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here