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Article Dans Une Revue Physical Chemistry Chemical Physics Année : 2010

Synthesis and grafting of a BTP derivative onto a quartz crystal microbalance for lanthanide detection

Résumé

The ability of bis-triazinylpyridine (BTP) molecules to complex lanthanides is well-known in solution and can be judiciously utilized to elaborate solid sensing surfaces. This was done by synthesizing a new BTP derivative and covalently anchoring it onto gold surfaces. The BTP grafting, its chemical modification and the resultant lanthanide complexation were evaluated by combining X-ray Photoelectron Spectroscopy (XPS) and Polarization Modulation-Infrared Reflection Absorption Spectroscopy (PM-IRRAS). The detection of neodynium and europium cations was measured by a Quartz Crystal Microbalance (QCM). Interestingly, when immobilized on gold, BTP appeared to show very distinct sensitivities towards Eu3+ and Nd3+. Moreover, these sensitivities could be controlled by varying the pH and/or the nitrate concentration in solution. This novel strategy, consisting of the immobilization of BTP sensing molecules, is thus very promising for sensitive and specific lanthanide detection.

Dates et versions

hal-00604780 , version 1 (29-06-2011)

Identifiants

Citer

Dimitri Mercier, Nicolas Leconte, Christophe Methivier, Franck Suzenet, G?ld Guillaumet, et al.. Synthesis and grafting of a BTP derivative onto a quartz crystal microbalance for lanthanide detection. Physical Chemistry Chemical Physics, 2010, 12 (23), pp.6099-6106. ⟨10.1039/b921389a⟩. ⟨hal-00604780⟩
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