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Titolo:
MATHEMATICAL PREDICTION AND CORRECTION OF INTERFERENCES FOR OPTIMIZATION OF LINE SELECTION IN INDUCTIVELY-COUPLED PLASMA OPTICAL-EMISSION SPECTROMETRY
Autore:
ZHANG PX; LITTLEJOHN D; NEAL P;
Indirizzi:
UNIV STRATHCLYDE,DEPT PURE & APPL CHEM,CATHEDRAL ST GLASGOW G1 1XL SCOTLAND UNIV STRATHCLYDE,DEPT PURE & APPL CHEM,CATHEDRAL ST GLASGOW G1 1XL SCOTLAND ATI UNICAM LTD CAMBRIDGE CB1 2PX ENGLAND
Titolo Testata:
Spectrochimica acta, Part B: Atomic spectroscopy
fascicolo: 12, volume: 48, anno: 1993,
pagine: 1517 - 1535
SICI:
0584-8547(1993)48:12<1517:MPACOI>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
MUTUAL SPECTRAL INTERFERENCES; RARE-EARTH ELEMENTS; ATOMIC SPECTRA; INSTRUMENT; SIMULATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
P.X. Zhang et al., "MATHEMATICAL PREDICTION AND CORRECTION OF INTERFERENCES FOR OPTIMIZATION OF LINE SELECTION IN INDUCTIVELY-COUPLED PLASMA OPTICAL-EMISSION SPECTROMETRY", Spectrochimica acta, Part B: Atomic spectroscopy, 48(12), 1993, pp. 1517-1535

Abstract

A chemometric method based on matrix projection has been developed toprovide information about multiplicative and spectral interferences at lines selected for the analysis of samples. The procedure requires measurement of the intensities at (a) the central positions of more than one line (multiline procedure) or (b) many positions across a singleline of the analyte (single line procedure). The intensities are measured for three solutions: a standard solution; the sample solution; and the sample spiked with the analyte standard solution. With the multiline procedure, the relative value of spectral interference is predicted for the wavelengths selected. If only one line is predicted as having no spectral interference, the prediction must be checked by the application of the single line procedure. If the predicted interferences are accurate, the data can be used to estimate the concentration of analyte prior to a full quantitative analysis. Unlike other methods, thepresent procedure does not require information about the sample composition or the preparation of solutions for the suspected interferents. The procedure also reduces the necessity to use a completely selective line for analysis.

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Documento generato il 20/09/20 alle ore 01:03:27