| Full text | |
| Author(s): |
Khan, Sabir
[1, 2]
;
Hussain, Sajjad
[3]
;
Wong, Ademar
[1, 2]
;
Foguel, Marcos Vinicius
[1, 2]
;
Goncalves, Luis Moreira
[4]
;
Pividori Gurgo, Maria Isabel
[5]
;
Taboada Sotomayor, Maria del Pilar
[1, 2]
Total Authors: 7
|
| Affiliation: | [1] Univ Estadual Paulista, UNESP, Inst Quim, Dept Quim Analit, Araraquara, SP - Brazil
[2] Natl Inst Alternat Technol Detect Toxicol Evaluat, Araraquara, SP - Brazil
[3] GIK Inst Engn Sci & Technol, Fac Mat & Chem Engn, Topi - Pakistan
[4] Univ Porto, Fac Ciencias, Dept Quim & Bioquim, REQUIMTE LAQV, Oporto - Portugal
[5] Univ Autonoma Barcelona, Dept Analyt Chem, Barcelona - Spain
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | REACTIVE & FUNCTIONAL POLYMERS; v. 122, p. 175-182, JAN 2018. |
| Web of Science Citations: | 11 |
| Abstract | |
Magnetic molecularly imprinted polymer (mag-MIP) were developed for the analysis of ametryn (4-Nethyl-6-methylsulfanyl-2-N-propan-2-yl-1,3,5-triazine-2,4-diamine), a popular triazine herbicide. Iron oxide (Fe3O4) nanoparticles were synthetized, and then modified with tetraethoxysilane (TEOS) and 3-mercaptopropyl-trimethoxysilane (MPS). Then MIPs' polymerimerization occurred in the nanoparticles' surface, using ethylene-glycol-dimethacrylate (EGDMA) as the building monomer, 2,2'-azobis(2-methylpropionitrile) (AIBN) as the radical initiator, and 2-vinylpyridine as the functional monomer. The functional monomer was previously chosen by computational simulation. The mag-MIPs' adsorption behavior well-fitted a Langmuir model (q(m)of 8.6 mg g(-1),K-L of 5.2 L mg(-1)) and pseudo first order kinetics (k(1) of 2.5 x 10(-4) s(-1)). The developed analytical methodology, using high-performance liquid chromatography with UV detection (HPLC-UV), showed suitable selectivity and had a limit of detection (LOD) and quantification (LOQ) of 25 and 82 nmol L-1, respectively. (AU) | |
| FAPESP's process: | 16/06926-0 - Development and application of new nanostructured chemical sensors and applications of new nanostructured chemical sensors based on biomimetic polymers |
| Grantee: | Maria Del Pilar Taboada Sotomayor |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |
| FAPESP's process: | 14/25264-3 - Development and application of new nanoestructurated chemical sensors based on biomimetic polymers |
| Grantee: | Maria Del Pilar Taboada Sotomayor |
| Support Opportunities: | Regular Research Grants |