Sensors for organic materials

ORGANIC SENSOR MATERIALS FOR ION-SELECTIVE ELECTRODES Table 3.9 Selectivity coefficients of some PVC calcium ISEs (15)... 

Moody, G. J., Thomas, J. D. R., Organic Sensor Materials in Entangled and Polymer-Bound Matrices for Ion-Selective Electrodes , in Chemical Sensors Edmonds, T. E. (ed.) Glasgow Blackie and Sons, 1988, pp. 75-116. 

Organic sensor materials in entangled and polymer-bound matrices for ion-selective electrodes... 

I. M. Malkowsky, C. Kiener, I. Richter, M. Schubert, E. Leung, R. Moos, S. Achmann, and G. Hagen (BASF), Use of metal-organic framework materials for the production of humidity-sensitive layers for sensors, DE 102009047201,2011. 

We have shown a new concept for selective chemical sensing based on composite core/shell polymer/silica colloidal crystal films. The vapor response selectivity is provided via the multivariate spectral analysis of the fundamental diffraction peak from the colloidal crystal film. Of course, as with any other analytical device, care should be taken not to irreversibly poison this sensor. For example, a prolonged exposure to high concentrations of nonpolar vapors will likely to irreversibly destroy the composite colloidal crystal film. Nevertheless, sensor materials based on the colloidal crystal films promise to have an improved long-term stability over the sensor materials based on organic colorimetric reagents incorporated into polymer films due to the elimination of photobleaching effects. In the experiments... 

The organic conductor properties of tetrathiaflulvalenetetracyanoquino-dimethane (TTF-TCNQ) as a material for constructing electrodes, viz. its catalytic response and resistance to passivation, are of special interest for the determination of biological compounds, which usually have slow electrode kinetics and a low sensitivity, and tend to foul electrode surfaces. The response of a TTF-TCNQ microarray sensor inserted in a flow system for... 

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