Abstract
A new type of light-addressable potentiometric sensor (LAPS) has been developed by elaboration of photocurable ion-sensitive membranes based on matrices of mono- and diacrylates in combination with a silicon-based electrochemical transducer for the purposes of chemical and biochemical analyses. The characteristics of the elaborated K-, Li-, Cs-, Ca- and Mg-LAPS are presented to indicate the potential of the technology developed. For example, the sensitivities of the K- and Li-LAPS were found to be 58 ± 1 mV/pK and 59 ± 1 mV/pLi, respectively, over concentration ranges of 10-5-10-1 mol/l. The detection limits were evaluated to be 2 × 10-6 mol/l of the primary ion.
Original language | English |
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Pages (from-to) | 79-85 |
Number of pages | 7 |
Journal | Sensors and Actuators, B: Chemical |
Volume | 85 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2002 Jun 20 |
Externally published | Yes |
Keywords
- Ion-sensitivity
- Light-addressable potentiometric sensor (LAPS)
- Photocurable membranes
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry