| Full text | |
| Author(s): |
Namikuchi, Eliane A.
;
Gaspar, Rafael D. L.
;
Raimundo Jr, Ivo M.
;
Mazali, Italo O.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY; v. 300, p. 7-pg., 2023-11-05. |
| Abstract | |
A nanosensor based on magnetic core-shell nanoparticles functionalized with rhodamine derivative, N-(3-carboxy)acryloyl rhodamine B hydrazide (RhBCARB), using (3-aminopropyl)triethoxysilane (APTES) as a linker, has been synthesized for detection of Cu(II) ions in water. The magnetic nanoparticle and the modified rhodamine were fully characterized, showing a strong orange emission sensitive to Cu(II) ions. The sensor shows a linear response from 10 to 90 & mu;g L-1, detection limit of 3 & mu;g L-1 and no interference of Ni(II), Co(II), Cd(II), Zn(II), Pb (II), Hg(II) and Fe(II) ions. The nanosensor performance is similar to those described in the literature, being a viable option for the determination of Cu(II) ions in natural waters. In addition, the magnetic sensor can be easily removed from the reaction medium with the aid of a magnet and its signal recovered in acidic solution, allowing its reuse in subsequent analysis. (AU) | |
| FAPESP's process: | 18/20997-3 - Development of optical oxygen and temperature sensors based on visible and infrared emitting lanthanide ion complexes |
| Grantee: | Rafael Di Lazaro Gaspar |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 14/50951-4 - INCT 2014: Advanced Analytical Technologies |
| Grantee: | Celio Pasquini |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 14/50906-9 - INCT 2014: in Functional Complex Materials |
| Grantee: | Fernando Galembeck |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 13/22127-2 - Development of novel materials strategic for integrated analytical devices |
| Grantee: | Lauro Tatsuo Kubota |
| Support Opportunities: | Research Projects - Thematic Grants |