Conductance based sensing and analysis of soluble phosphates in wastewater
| dc.contributor.author | Warwick, C. | - |
| dc.contributor.author | Guerreiro, Antonio R. | - |
| dc.contributor.author | Gomez-Caballero, Alberto | - |
| dc.contributor.author | Wood, Elizabeth | - |
| dc.contributor.author | Kitson, James | - |
| dc.contributor.author | Robinson, James | - |
| dc.contributor.author | Soares, Ana | - |
| dc.date.accessioned | 2014-08-29T04:00:47Z | |
| dc.date.available | 2014-08-29T04:00:47Z | |
| dc.date.issued | 2014-02-15T00:00:00Z | - |
| dc.description.abstract | The current standard method used for measuring soluble phosphate in environmental water samples is based on a colourimetric approach, developed in the early 1960s. In order to provide an alternative, label free sensing solution, a molecularly imprinted polymer (MIP) was designed to function as a phosphate receptor. A combination of functional monomer (N-allylthiourea), cross-linker and monomer/template ratios were optimised in order to maximise the binding capacity for phosphate. When produced in membrane format, the MIP's ability to produce a reversible change in conductance in the presence of phosphate was explored for fabrication of a sensor which was able to selectively detect the presence of phosphate compared to sulphate, nitrate and chloride. In wastewater samples the sensor had a limit of detection of 0.16 mg P/l, and a linear range between 0.66 and 8 mg P/l. This is below the minimum monitoring level (1 mg P/l) as required by current legislation for wastewater discharges, making the sensor as developed promising for direct quantification of phosphate in environmental monitoring applications. | en_UK |
| dc.identifier.citation | Christopher Warwick, Antonio Guerreiro, Alberto Gomez-Caballero, Elizabeth Wood, James Kitson, James Robinson, Ana Soares, Conductance based sensing and analysis of soluble phosphates in wastewater, Biosensors and Bioelectronics, Volume 52, 15 February 2014, Pages 173–179. | |
| dc.identifier.issn | 0956-5663 | - |
| dc.identifier.uri | http://dx.doi.org/10.1016/j.bios.2013.08.048 | - |
| dc.identifier.uri | http://dspace.lib.cranfield.ac.uk/handle/1826/8661 | |
| dc.publisher | Elsevier Science B.V., Amsterdam. | en_UK |
| dc.rights | NOTICE: this is the author’s version of a work that was accepted for publication in Biosensors and Bioelectronics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Biosensors and Bioelectronics, VOL 52 2014 DOI: 10.1016/j.bios.2013.08.048 | |
| dc.title | Conductance based sensing and analysis of soluble phosphates in wastewater | en_UK |
| dc.type | Article | - |