2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/26/2021 | 8:30 AM - 10:30 AM | Development of an In-Situ Dissolved Organic Carbon Sampler for Aquatic Systems | Virtual Platform
Development of an In-Situ Dissolved Organic Carbon Sampler for Aquatic Systems
This presentation will outline an in-situ aquatic sampler, named the Deployable Underwater Chemical Sampler (DUCS). DUCS uses a smart sampling method where an acid preservative is mixed with collected sample, and acidified samples are then stored within a long length of tubing. The preservative acts as a tracer to determine where samples start and stop, while simultaneously correcting for dilution factor using conductivity. Following deployment, samples within long tubing are dispensed to a series of vials. Individual sample locations, with associated dilution factors, are found using a small volume conductivity probe. DUCS can collect preserved samples at higher frequencies than other commercially available samplers making this sampler ideal for high-frequency DOC sampling – something which is needed to more fully understand DOC variability in aquatic systems. DUCS can also potentially be used for in situ sampling and preservation of other chemical species such as trace metals. In addition to evaluating this sampler in-lab, data from DUCS deployments in the Clark Fork River (CFR) near Missoula, MT will also be presented.
- Organic matter
- Freshwater continuum
- Stream
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Presenters/Authors
Alec Johnson
(), University of Montana, alec.johnson@umconnect.umt.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -