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Enhanced Quenching Effect of Neonicotinoid Pesticides on Time-Resolved Terbium Luminescence in Presence of Surfactants
Joint Authors
Llorent-Martínez, Eulogio J.
Soler-Gallardo, M. I.
Ruiz-Medina, Antonio
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-02
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
A luminescence analytical method for the quantification of neonicotinoid pesticides (acetamiprid, clothianidin, dinotefuran, imidacloprid, nitenpyram, thiacloprid, and thiamethoxam) in water samples is proposed.
The method is based on the quenching effect that these analytes produce on the time-resolved luminescence signal of terbium ions (excitation/emission wavelengths of 256/545 nm/nm).
An enhancement on the analytical signal is observed when surfactants are used in the system.
The use of a 0.01 mol·L−1 sodium dodecyl sulfate produced approximately a 30% increase in the sensitivity of the method.
Under the optimum conditions, the method presented detection limits between 0.03 and 0.23 µg·mL−1.
Interference studies were performed for ions commonly present in waters, observing no interferences.
In addition, recovery experiments were performed in different waters, well, spring, and swamp, observing recovery yields close to 100%, with relative standard deviations lower than 4% in all cases.
No sample treatment except a filtration step was required.
Hence, this method may represent an alternative to other existing methods for the quick and simple analysis of these ubiquitous insecticides in environmental waters.
American Psychological Association (APA)
Ruiz-Medina, Antonio& Soler-Gallardo, M. I.& Llorent-Martínez, Eulogio J.. 2018. Enhanced Quenching Effect of Neonicotinoid Pesticides on Time-Resolved Terbium Luminescence in Presence of Surfactants. Journal of Chemistry،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1182428
Modern Language Association (MLA)
Ruiz-Medina, Antonio…[et al.]. Enhanced Quenching Effect of Neonicotinoid Pesticides on Time-Resolved Terbium Luminescence in Presence of Surfactants. Journal of Chemistry No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1182428
American Medical Association (AMA)
Ruiz-Medina, Antonio& Soler-Gallardo, M. I.& Llorent-Martínez, Eulogio J.. Enhanced Quenching Effect of Neonicotinoid Pesticides on Time-Resolved Terbium Luminescence in Presence of Surfactants. Journal of Chemistry. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1182428
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182428