University of Oulu

Ilkka Vesavaara, Anssi Mäkynen & Paavo Perämäki (2022) Properties and suitability of liquid electrode plasma optical emission spectrometry (LEP-OES) for the determination of potassium, lithium, iron, and zinc in aqueous sample solutions, Instrumentation Science & Technology, 50:2, 146-160, DOI: https://doi.org/10.1080/10739149.2021.1974473

Properties and suitability of liquid electrode plasma optical emission spectrometry (LEP-OES) for the determination of potassium, lithium, iron, and zinc in aqueous sample solutions

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Author: Vesavaara, Ilkka1; Mäkynen, Anssi2; Perämäki, Paavo1
Organizations: 1Research Unit of Sustainable Chemistry, University of Oulu, Finland
2Optoelectronics and Measurement Techniques, University of Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.3 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2022021619353
Language: English
Published: Informa, 2021
Publish Date: 2022-02-16
Description:

Abstract

The effects of different parameters and the nitric acid concentration on the sensitivity and repeatability of elemental analysis were characterized for liquid electrode plasma optical emission spectrometry (LEP-OES). In addition, internal standardization for LEP-OES was investigated. The developed LEP-OES method was used for the determination of lithium, potassium, iron, and zinc in aqueous solutions and in samples with high acid concentrations after microwave-assisted digestion. The results were compared with those obtained by inductively coupled plasma — optical emission spectrometry. The sensitivity was improved when the plasma parameters were optimized. In addition, some improvement in the accuracy and reproducibility of the results was achieved when internal standardization by gold was employed. However, due to the strong matrix effects, the calibration standards should be made as similar as possible to the sample matrix.

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Series: Instrumentation science & technology
ISSN: 1073-9149
ISSN-E: 1525-6030
ISSN-L: 1073-9149
Volume: 50
Issue: 2
Pages: 146 - 160
DOI: 10.1080/10739149.2021.1974473
OADOI: https://oadoi.org/10.1080/10739149.2021.1974473
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
116 Chemical sciences
Subjects:
Copyright information: © 2021 The Author(s). Published with license by Taylor & Francis Group, LLC. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.
  https://creativecommons.org/licenses/by-nc-nd/4.0/