Ambrus Árpád and Kamirán Áron Hamow and Kötelesné Suszter Gabriella and Németh Anikó and Solymosné Majzik Etelka: Accuracy of analytical standard solutions and the uncertainty in their nominal concentrations. In: Élelmiszervizsgálati közlemények, (63) 1. pp. 1414-1421. (2017)
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Abstract
In the last step of the analysis, the accuracy of analytical standard solutions has a decisive influence on the measurement results of pesticide residues, as well as all other chemical contaminants, and, in the case of actual concentrations differing from nominal ones, can result in a systematic error during the determination of sample components. Therefore, most of the laboratories who feel responsible for their results pay special attention to the preparation and storage of standard solutions, and to replenishing solvent losses due to possible evaporation, based on the mass measurements of vessels storing standard solutions before and after use. However, in our experience, much less attention than necessary is paid in practical work to monitoring the possible decomposition of individual active ingredients, and not appropriate statistical methods are used for the evaluation of the monitoring results. In our article, we present the standard preparation methods of two laboratories employing “good analytical practices”, analyze the uncertainties of the different steps, and make a recommendation for the preparation of the most accurate standard solutions.
| Item Type: | Article |
|---|---|
| Other title: | Az analitikai standard oldatok pontossága és a névleges koncentrációjuk bizonytalansága |
| Heading title: | Tudomány = Science |
| Journal or Publication Title: | Élelmiszervizsgálati közlemények |
| Date: | 2017 |
| Volume: | 63 |
| Number: | 1 |
| ISSN: | 0422-9576 |
| Page Range: | pp. 1414-1421 |
| Language: | English |
| Publisher: | WESSLING Nemzetközi Kutató és Oktató Központ Közhasznú Nonprofit Kft. |
| Place of Publication: | Budapest |
| Related URLs: | http://acta.bibl.u-szeged.hu/79000/ |
| Uncontrolled Keywords: | Élelmiszervizsgálat - módszer, Élelmiszerkémia - módszer, Növényvédőszerek - kémiai analízis - mérés, Élelmiszerbiztonság |
| Additional Information: | Bibliogr.: 1421. p. ; összefoglalás angol nyelven |
| Subjects: | 02. Engineering and technology 02. Engineering and technology > 02.10. Other engineering and technologies 02. Engineering and technology > 02.10. Other engineering and technologies > 02.10.02. Food and beverages |
| Date Deposited: | 2023. Jul. 07. 07:54 |
| Last Modified: | 2023. Aug. 26. 08:17 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/79131 |
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