Talanta, volume 161, pages 359-367

Calibration of handheld X-ray fluorescence (XRF) equipment for optimum determination of elemental concentrations in sediment samples.

Mejía Piña K Gabriela 1
Huerta-Diaz Miguel Angel 2
González Yajimovich O 3
1
 
Posgrado en Oceanografía Costera, Facultad de Ciencias Marinas, Universidad Autónoma de Baja California (UABC), Apdo. Postal 76, Ensenada, B.C. 22800, México
2
 
Instituto de Investigaciones Oceanológicas, UABC, Apdo. Postal 453, Ensenada, B.C. 22800, México
3
 
Facultad de Ciencias Marinas, Universidad Autónoma de Baja California (UABC), Apdo. Postal 76, Ensenada, B.C. 22800, México
Publication typeJournal Article
Publication date2016-12-01
Journal: Talanta
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor6.1
ISSN00399140, 18733573
Analytical Chemistry
Abstract
Handheld X-ray fluorescence spectrometers (XRFs) represent a more practical, efficient and economic tool to determine the elemental composition of solid inorganic and organic samples than conventional analytical techniques. The objective of this work was to demonstrate that handheld XRFs could be a precise, accurate and reliable tool to analyze up to 27 different elements. This objective was accomplished through the optimization of an empirical calibration curve that, in addition to include certified reference materials (CRM), it also introduced new approaches, such as the use of solid CRM mixtures and combinations of organic and inorganic matrices. These approaches significantly increased the number of calibration points and eliminated hiatuses in the calibration curve. Several factors were evaluated before construction of the calibration curve: incidence time of the X-ray beam, type of film through which the X-ray beams reach the samples, container type, minimum sample volume and sample moisture content. Results show that single elements can be analyzed with variable exposure times or, alternatively, multielemental analyses can be carried out with a constant exposure time (180s). Costs can be reduced by using Ziploc® bags as sample containers, but the number of measurable elements drops from 27 to 21, while the possibility of contamination increases.

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Mejía Piña K. G., Huerta-Diaz M. A., González Yajimovich O. Calibration of handheld X-ray fluorescence (XRF) equipment for optimum determination of elemental concentrations in sediment samples. // Talanta. 2016. Vol. 161. pp. 359-367.
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Mejía Piña K. G., Huerta-Diaz M. A., González Yajimovich O. Calibration of handheld X-ray fluorescence (XRF) equipment for optimum determination of elemental concentrations in sediment samples. // Talanta. 2016. Vol. 161. pp. 359-367.
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RIS Copy
TY - JOUR
DO - 10.1016/j.talanta.2016.08.066
UR - https://doi.org/10.1016%2Fj.talanta.2016.08.066
TI - Calibration of handheld X-ray fluorescence (XRF) equipment for optimum determination of elemental concentrations in sediment samples.
T2 - Talanta
AU - Mejía Piña, K Gabriela
AU - Huerta-Diaz, Miguel Angel
AU - González Yajimovich, O
PY - 2016
DA - 2016/12/01 00:00:00
PB - Elsevier
SP - 359-367
VL - 161
SN - 0039-9140
SN - 1873-3573
ER -
BibTex
Cite this
BibTex Copy
@article{2016_Mejía Piña,
author = {K Gabriela Mejía Piña and Miguel Angel Huerta-Diaz and O González Yajimovich},
title = {Calibration of handheld X-ray fluorescence (XRF) equipment for optimum determination of elemental concentrations in sediment samples.},
journal = {Talanta},
year = {2016},
volume = {161},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016%2Fj.talanta.2016.08.066},
pages = {359--367},
doi = {10.1016/j.talanta.2016.08.066}
}
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