Miniaturized Fluorimetric Method for Quantification of Zinc in Dry Dog Food
Joint Authors
Martins, Rute C.
Pereira, Ana M.
Matos, Elisabete
Barreiros, Luisa
Fonseca, António J. M.
Cabrita, Ana R. J.
Segundo, Marcela A.
Source
Journal of Analytical Methods in Chemistry
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-04
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Zinc is an essential trace element for animals in several biological processes, particularly in energy production, and it is acquired from food ingestion.
In this context, a microplate-based fluorimetric assay was developed for simple, fast, and low-cost determination of zinc in pet food using 2,2′-((4-(2,7-difluoro-3,6-dihydroxy-4aH-xanthen-9-yl)-3-methoxyphenyl)azanediyl)diacetic acid (FluoZin-1) as fluorescent probe.
Several aspects were studied, namely, the stability of the fluorescent product over time, the FluoZin-1 concentration, and the pH of reaction media.
The developed methodology provided a limit of detection of 1 μg L−1 in sample acid digests, with a working range of 10 to 200 μg L−1, corresponding to 100–2000 mg of Zn per kg of dry dog food samples.
Intraday repeatability and interday repeatability were assessed, with relative standard deviation values < 3.4% (100 μg L−1) and <11.7% (10 μg L−1).
Sample analysis indicated that the proposed fluorimetric assay provided results consistent with ICP-MS analysis.
These results demonstrated that the developed assay can be used for rapid determination of zinc in dry dog food.
American Psychological Association (APA)
Martins, Rute C.& Pereira, Ana M.& Matos, Elisabete& Barreiros, Luisa& Fonseca, António J. M.& Cabrita, Ana R. J.…[et al.]. 2020. Miniaturized Fluorimetric Method for Quantification of Zinc in Dry Dog Food. Journal of Analytical Methods in Chemistry،Vol. 2020, no. 2020, pp.1-6.
https://search.emarefa.net/detail/BIM-1174909
Modern Language Association (MLA)
Martins, Rute C.…[et al.]. Miniaturized Fluorimetric Method for Quantification of Zinc in Dry Dog Food. Journal of Analytical Methods in Chemistry No. 2020 (2020), pp.1-6.
https://search.emarefa.net/detail/BIM-1174909
American Medical Association (AMA)
Martins, Rute C.& Pereira, Ana M.& Matos, Elisabete& Barreiros, Luisa& Fonseca, António J. M.& Cabrita, Ana R. J.…[et al.]. Miniaturized Fluorimetric Method for Quantification of Zinc in Dry Dog Food. Journal of Analytical Methods in Chemistry. 2020. Vol. 2020, no. 2020, pp.1-6.
https://search.emarefa.net/detail/BIM-1174909
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1174909