Synthesis, Characterization, and Application of Europium(III) Complexes as Luminescent Markers of Banknotes
| العنوان: | Synthesis, Characterization, and Application of Europium(III) Complexes as Luminescent Markers of Banknotes |
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| المؤلفون: | Macrino,Clebson J., Silva,Elias M., Cunha,Victor R., Fonseca,Victor R., Cunha Neto,Álvaro, Araújo,Joyce R., Lacerda Jr.,Valdemar, Romão,Wanderson |
| المصدر: | Journal of the Brazilian Chemical Society v.32 n.5 2021 Journal of the Brazilian Chemical Society Sociedade Brasileira de Química (SBQ) instacron:SBQ |
| بيانات النشر: | Sociedade Brasileira de Química, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | europium(III) complexes, counterfeiting, LDI MS, luminescent markers |
| الوصف: | In this work, three complexes were synthesized from the trivalent europium ion (EuIII), using the picrate anion (pic), and delta-valerolactam (DVL), epsilon-caprolactam (EPK), and oenantholactam (OEN). The synthesized complexes [Eu(pic)3·(DVL)3], [Eu(pic)3·(EPK)3], and [Eu(pic)3·(OEN)3] were studied as luminescent markers for application as security elements in Brazilian banknotes. All complexes showed red color emission with absorption at 397 nm and emission at 614 nm. Qualitative luminescence tests were performed on R$10, R$20, R$50, and R$100 Brazilian banknotes. The complexes were applied on the surface of the banknotes and were exposed to different wavelengths of 254, 312, 365, and 320-400 nm. The chemical profiles of the complexes were identified on the banknotes employing the laser desorption ionization mass spectrometry (LDI (±) MS) technique. Generally, tests were promising, and can thus provide a simple, fast, and easy method to identify the authenticity of questioned documents, with an average cost of R$0.65 per mg. |
| وصف الملف: | text/html |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=od______3056::9be3b79d7ad7c54dc000d2d2ecff7eab http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532021000501070 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.od......3056..9be3b79d7ad7c54dc000d2d2ecff7eab |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |