| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 745680 | Sensors and Actuators B: Chemical | 2011 | 5 Pages |
Abstract
This paper describes the preparation of a hydrophilic copolymer membrane with two comonomers: 1-vinyl-2-pyrrolidone (commercial) and a new water insoluble piperazinedione derivative, which is a fluorogenic mercury sensing motif. The dense membrane permitted the fluorogenic detection of Hg2+ in aqueous media. The sensitivity of the membrane this cation was significantly high, with a detection limit of 10 ppt. This limit of detection is much lower than that of DMSO/water solutions of the sensing monomer, which is 10 ppb, and significantly lower than the maximum contaminant level (EPA) in drinking water, 2 ppb.
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Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Saúl Vallejos, Pedro Estévez, Saturnino Ibeas, Asunción Muñoz, Félix C. García, Felipe Serna, José M. García,