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Lab Chip. 2012 Dec 7;12(23):5069-78. doi: 10.1039/c2lc40781g.

Optical sensing system based on wireless paired emitter detector diode device and ionogels for lab-on-a-disc water quality analysis.

Author information

1
CLARITY: Centre for Sensor Web Technology, National Centre for Sensor Research, Dublin City University, Dublin, Ireland.

Abstract

This work describes the first use of a wireless paired emitter detector diode device (PEDD) as an optical sensor for water quality monitoring in a lab-on-a-disc device. The microfluidic platform, based on an ionogel sensing area combined with a low-cost optical sensor, is applied for quantitative pH and qualitative turbidity monitoring of water samples at point-of-need. The autonomous capabilities of the PEDD system, combined with the portability and wireless communication of the full device, provide the flexibility needed for on-site water testing. Water samples from local fresh and brackish sources were successfully analysed using the device, showing very good correlation with standard bench-top systems.

PMID:
23070147
DOI:
10.1039/c2lc40781g

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