Partridge, MatthewWong, RebeccaJames, Stephen W.Davis, FrankHigson, Seamus P. J.Tatam, Ralph P.2014-09-042014-09-042014-11-01Matthew Partridge, Rebecca Wong, Stephen W. James, Frank Davis, Séamus P.J. Higson, Ralph P. Tatam, Long period grating based toluene sensor for use with water contamination, Sensors and Actuators B: Chemical, Volume 203, November 2014, Pages 621–625.0925-4005http://dx.doi.org/10.1016/j.snb.2014.06.121http://dspace.lib.cranfield.ac.uk/handle/1826/8672A demonstration of the use of a calix[4]resorcinarene coated optical fibre long period grating sensor for the detection of toluene in water is presented. Monitoring water quality both for domestic use and around industrial sites is critical to the preservation of clean water provision. Here we show that, by using a fibre optic based sensor system, water quality monitoring can be carried out without the requirement for water sampling or pre-concentration. The results presented demonstrate that this proof-of-concept sensor is capable of sensing ∼100ppm concentrations of toluene with semi-selectivity and low (<10ppm) variation.Under a Creative Commons license Attribution 3.0 Unported (CC BY 3.0). You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.Article