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Abstract

THE INDUCTIVELY COUPLED PLASMA (ICP) IS AN EFFICIENT ATOMIZER AND IONIZER OF ALMOST ALL ELEMENTS. IT HAS A LOW SPECTRAL BACKGROUND COMPARED TO OTHER THERMAL SOURCES AT ABOUT THE SAME TEMPERATURE. IT IS FREE FROM CHEMICAL INTERFERENCE IT PRODUCES INTENSE, UNSELF-REVERSED ATOMIC AND IONIC LINES FOR ELEMENTS INTRODUCED AT 20 MG/ML OR BELOW. IF A SUITABLE LINE IS AVAILABLE CLOSE TO THE ANALYTE LINE, THE TWO-LINE SINGLE SOURCE METHOD MAY BE USED TO CORRECT THE PRIMARY SOURCE SCATTERING. ATOMIC FLUORESCENCE SPECTROSCOPY (AFS) METHODS ARE ANALYSED AND COMPARED WITH ATOMIC SPECTROMETRIC METHODS. ICP - BASED TECHNIQUES HAVE EXCELLENT LINEAR DYNAMIC RANGES. ICP - AFS PROVIDES GREATER SPECTRAL SELECTIVITY THAN ICP - MASS SPECTROMETRY OR ICP - ATOMIC EMISSION SPECTROMETRY. THE CHIEF LIMITATION OF ICP-AFS IS ITS INFERIOR DETECTABILITY FOR REFRACTORY ELEMENTS.

Additional information

Authors: OMENETTO N JRC-ISPRA WINEFORDNER J D UNIVERSITY OF FLORIDA, GAINESVILLE, USA , JRC-ISPRA;UNIVERSITY OF FLORIDA, GAINESVILLE, USA
Bibliographic Reference: BOOK: 1987, INDUCTIVELY COUPLED PLASMA IN ANALYTICAL ATOMIC SPECTROSCOPY PUBLISHED BY: VCH PUBLISHERS INC, DEEFIELD BEACH, FLORIDA, USA
Record Number: 1989126202300 / Last updated on: 1989-04-01
Category: PUBLICATION
Available languages: en