About the limit of detection in X-ray fluorescence analysis

Autor:	V. Ya. Borkhodoev
Rok vydání:	2014
Předmět:	Detection limit Normal distribution Analyte Distribution (mathematics) Chemistry Analytical chemistry X-ray fluorescence Biological system Blank Signal Confidence interval Analytical Chemistry
Zdroj:	Journal of Analytical Chemistry. 69:1041-1046
ISSN:	1608-3199 1061-9348
DOI:	10.1134/s1061934814110021
Popis:	Blank experiment in X-ray fluorescence analysis is actually a measurement of the background at the analytical line of an element to be determined. Numerous factors affecting the appearance and registration of the background signal are responsible for its normal distribution. In this work, the possibility of using real samples with low analyte concentrations as blank samples is substantiated. A criterion for the assessment of the correctness of different equations for calculating the limit of detection is proposed. An expression for the calculation of the limit of detection using a one-sided confidence interval of the distribution of analytical signal is derived. An algorithm for the assessment of the limit of detection is proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::42d5c599226868b9a94c7e34cfaf62b0 https://doi.org/10.1134/s1061934814110021 Zobrazit plný text záznamu Plný text ve formátu PDF