Colorimetric fiber optic probe for measurement of chemical parameters in surface water

Obrovski, Boris; Bajić, Jovan S.; Mihajlović, Ivana; Miloradov, Mirjana Vojinović; Batinić, Bojan; Živanov, M.

doi:10.1016/j.snb.2016.01.016

Cited by 10 publications

(16 citation statements)

References 22 publications

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“…The sensor showed good performance, with differences in the concentrations between 2.31% for sulfate (minimum) to 6.20% for total chlorine (maximum). Figure shows a schematic of the reported multiplexed OFS …”

Section: Multiplexed Ofs For Aquatic Environmentsmentioning

confidence: 99%

“…Among this type of sensors are Optical Fiber Chemical Sensors (OFCS), a type of extrinsic OFS that employs external artifacts, such as a sensing membrane or an organic probe, to monitor the presence of certain chemical species. − OFS show application in a wide range of fields, such as biomedical, military, and security or civil engineering. Some cases of OFS applied to environmental parameters, including aquatic environments and water quality, have also been reported. − The combination of chemosensors’ selectivity for a specific analyte with the accuracy of OFS can be a very promising alternative for biocide detection/monitoring. This combo shows high potential in biocide selectivity, the ability to detect multiple analytes, detection limits, and simplicity.…”

mentioning

confidence: 99%

“…This is particularly interesting in this field, since multiple parameters may affect the water quality. Some reports of multiplexed OFS for aquatic environment parameter detection have been reported; ,, however, the use of organic probes for multianalyte detection in OFS still lacks further development to achieve the next step  commercial level. Organic chemosensors have been used as external sensing materials in OFS. − pH indicators are among the most used chemosensors in OFS, and pH OFS can also act as CO 2 sensors, since this is normally achieved by measuring the pH change in response to carbonation .…”

mentioning

confidence: 99%

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Optical Fiber Sensors for Biocide Monitoring: Examples, Transduction Materials, and Prospects

et al. 2020

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Antifouling biocides are toxic to the marine environment impacting negatively on the aquatic ecosystems. These biocides, namely, tributyltin (TBT) and Cu(I) compounds, are used to avoid biofouling; however, their toxicity turns TBT and Cu(I) monitoring an important health issue. Current monitoring methods are expensive and time-consuming. This review provides an overview of the actual state of the art of antifouling paints' biocides, including their impact and toxicity, as well as the reported methods for TBT and Cu(I) detection over the past decade. The principles of optical fiber sensors (OFS) applications, with focus on environmental applications, and the use of organic chemosensors in this type of sensors are debated. The multiplexing ability of OFS and their application on aquatic environments are also discussed.

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Section: Multiplexed Ofs For Aquatic Environmentsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Optical Fiber Sensors for Biocide Monitoring: Examples, Transduction Materials, and Prospects

et al. 2020

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“…In contrast, many researchers in the environmental science domain are still focusing on developing new sensors to measure physical properties [57,58,59,60] or bio-chemical properties [61,62] of a water body. Much research has also been carried out from the catchment management perspective.…”

Section: Literature Reviewmentioning

confidence: 99%

A Low-Cost Smart Sensor Network for Catchment Monitoring

Zhang

Heery

O’Neil

et al. 2019

Sensors

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Understanding hydrological processes in large, open areas, such as catchments, and further modelling these processes are still open research questions. The system proposed in this work provides an automatic end-to-end pipeline from data collection to information extraction that can potentially assist hydrologists to better understand the hydrological processes using a data-driven approach. In this work, the performance of a low-cost off-the-shelf self contained sensor unit, which was originally designed and used to monitor liquid levels, such as AdBlue, fuel, lubricants etc., in a sealed tank environment, is first examined. This process validates that the sensor does provide accurate water level information for open water level monitoring tasks. Utilising the dataset collected from eight sensor units, an end-to-end pipeline of automating the data collection, data processing and information extraction processes is proposed. Within the pipeline, a data-driven anomaly detection method that automatically extracts rapid changes in measurement trends at a catchment scale. The lag-time of the test site (Dodder catchment Dublin, Ireland) is also analyzed. Subsequently, the water level response in the catchment due to storm events during the 27 month deployment period is illustrated. To support reproducible and collaborative research, the collected dataset and the source code of this work will be publicly available for research purposes.

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“…The earliest types of such sensors were based on fiber optics [23,24]. Today, with the great improvement in resolution, different devices can be used as detectors, including scanners, webcams, cameras, etc.…”

Section: Introductionmentioning

confidence: 99%

Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology

2021

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The detection of the spectral fingerprint of chemical sensors through the combined use of an LCD and a webcam is an alternative approach for chemical sensor characterization. This technique allows the development of more compact, cheap, and user-friendly measurement systems compared to the more classic instruments, such as spectrometers and gas chromatography systems. In the Computer Screen Photo-assisted Technique (CSPT), a display acts as a light source, and a conventional camera (e.g., a webcam) plays the role of a detector. The light from the LCD is reflected (or transmitted) by the chemical sensor, and the camera detects it. In the present contribution, we propose a compact and low-cost platform based on CSPT for the characterization of colorimetric sensor arrays. The system can provide spectral information of both reflected and transmitted light from the sample. Further, a 2.4-inch LCD and three different detector’s (a webcam, an RGB sensor, and a camera module) performances have been evaluated and discussed. The developed system includes a UDOO-based single board computer that makes it a stand-alone measurement system.

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Colorimetric fiber optic probe for measurement of chemical parameters in surface water

Cited by 10 publications

References 22 publications

Optical Fiber Sensors for Biocide Monitoring: Examples, Transduction Materials, and Prospects

Optical Fiber Sensors for Biocide Monitoring: Examples, Transduction Materials, and Prospects

A Low-Cost Smart Sensor Network for Catchment Monitoring

Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology

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