Publication Details

Category Text Publication
Reference Category Journals
DOI 10.3390/s23239545
Licence creative commons licence
Title (Primary) In situ water quality monitoring using an optical multiparameter sensor probe
Author Goblirsch, T.; Mayer, T.; Penzel, S.; Rudolph, M.; Borsdorf, H. ORCID logo
Source Titel Sensors
Year 2023
Department MET
Volume 23
Issue 23
Page From art. 9545
Language englisch
Topic T5 Future Landscapes
Keywords UV/Vis spectroscopy; fluorescence spectroscopy; in situ water monitoring; model–view–controller architecture; submersible sensor probe
Abstract Optical methods such as ultraviolet/visible (UV/Vis) and fluorescence spectroscopy are well-established analytical techniques for in situ water quality monitoring. A broad range of bio-logical and chemical contaminants in different concentration ranges can be detected using these methods. The availability of results in real time allows a quick response to water quality changes. The measuring devices are configured as portable multi-parameter probes. However, their specification and data processing typically cannot be changed by users, or only with difficulties. Therefore, we developed a submersible sensor probe, which combines UV/Vis and fluorescence spectroscopy together with a flexible data processing platform. Due to its modular design in the hardware and software, the sensing system can be modified to the specific application. The dimension of the waterproof enclosure with a diameter of 100 mm permits also its application in groundwater monitoring wells. As a light source for fluorescence spectroscopy, we constructed an LED array that can be equipped with four different LEDs. A miniaturized deuterium–tungsten light source (200–1100 nm) was used for UV/Vis spectroscopy. A miniaturized spectrometer with a spectral range between 225 and 1000 nm permits the detection of complete spectra for both methods.
Persistent UFZ Identifier
Goblirsch, T., Mayer, T., Penzel, S., Rudolph, M., Borsdorf, H. (2023):
In situ water quality monitoring using an optical multiparameter sensor probe
Sensors 23 (23), art. 9545 10.3390/s23239545