A Novel Automatic Water Autosampler Operated From UAVs for Determining Dissolved Trace Elements

Frontiers in Marine Science

Araceli Rodríguez-Romero¹  Erica Sparaventi²  Gabriel Navarro²  Antonio Tovar-Sánchez² 

[1] Department of Analytical Chemistry, Faculty of Marine and Environmental Sciences, Marine Research Institute (INMAR), University of Cadiz, Cadiz, Spain;Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN), Spanish National Research Council (CSIC), Puerto Real, Spain;

关键词: remote water sampling;    Antarctic waters;    dissolved trace element;    unmanned aerial vehicle - UAV;    biogeochemical cycle;   

DOI  :  10.3389/fmars.2022.879953

来源: DOAJ

【 摘 要 】

Monitoring water systems under extreme conditions or in remote areas poses a risk to scientists and staff involved, and can also result in disturbances to the local flora and fauna. In order to overcome these limitations, new techniques are being developed with the aim to gain more insight into how geochemical pathways of trace elements regulate the functioning of the ocean. Here, we present the first trace metals and inorganic nutrients concentrations measured in dissolved (<0.22 µm) surface water samples collected in the Antarctic by using an Automatic Water Autosampler (AWA) system onboard an unmanned aerial vehicle (UAV). The AWA system has been used to chemically quantify the composition of the water masses (lake and coastal water) of Deception Island (South Shetland Islands, Antarctica), with, for example, Pb values ranging from 0.01 to 0.25 nM in seawater and 1.20 to 2.11 nM in lake water. The results demonstrate the effectiveness of the AWA system in environmental studies that require the sampling of trace metals and nutrients without sample contamination.

【 授权许可】

Unknown