Fundamentals and new approaches to calibration in atomic spectrometry

Autor:	Renata S. Amais, George L. Donati
Rok vydání:	2019
Předmět:	Heteroscedasticity Standardization Calibration (statistics) business.industry Computer science Standard addition Linear regression Atomic spectroscopy Process engineering business Spectroscopy Analytical Chemistry
Zdroj:	Journal of Analytical Atomic Spectrometry. 34:2353-2369
ISSN:	1364-5544 0267-9477
DOI:	10.1039/c9ja00273a
Popis:	Despite efforts to develop calibration-free methods for atomic spectrometry, the most successful applications of quantitative instrumental techniques involve calibration. In this review paper, we discuss the principles and applications of both traditional and some recently described calibration methods as they are used in spectrochemical analysis. We particularly focus on the fundamentals, basic conditions and statistics of linear regression based on least-squares fitting, including the impact of normality and heteroscedasticity on accuracy. Advantages and limitations of the external standard calibration (EC), internal standardization (IS) and standard additions (SA) methods are critically discussed, as well as new calibration strategies such as interference standard (IFS), standard dilution analysis (SDA), multi-energy calibration (MEC), multi-isotope calibration (MICal), multispecies calibration (MSC) and multi-flow calibration (MFC).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3cba70ec89ea6a40c5b8d3a4607ef732 https://doi.org/10.1039/c9ja00273a Zobrazit plný text záznamu