Technical note: GUARD – an automated fluid sampler preventing sample alteration by contamination, evaporation and gas exchange, suitable for remote areas and harsh conditions

Hartmann, Arno; Luetscher, Marc; Wachter, Ralf; Holz, Philipp; Eiche, Elisabeth; Neumann, Thomas

doi:https://doi.org/10.5194/hess-22-4281-2018

Articles | Volume 22, issue 8

https://doi.org/10.5194/hess-22-4281-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-22-4281-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 8

Technical note

|

13 Aug 2018

Technical note |

| 13 Aug 2018

Technical note: GUARD – an automated fluid sampler preventing sample alteration by contamination, evaporation and gas exchange, suitable for remote areas and harsh conditions

Arno Hartmann, Marc Luetscher, Ralf Wachter, Philipp Holz, Elisabeth Eiche, and Thomas Neumann

Supplement

https://doi.org/10.5194/hess-22-4281-2018-supplement

Data sets

GUARD autosampler_Assembly instructions A. Hartmann https://doi.org/10.5445/IR/1000085058

GUARD autosampler_Print-outs A. Hartmann and R. Wachter https://doi.org/10.5445/IR/1000085059

Model code and software

GUARD autosampler_Arduino sketch A. Hartmann and R. Wachter https://doi.org/10.5445/IR/1000085057

Short summary

We have developed a new mobile automated water sampling device for environmental research and other applications where waters need to be tested for compliance with environmental/health regulations. It has two main advantages over similar devices: firstly, it injects water samples directly into airtight vials to prevent any change in sample properties through contamination, evaporation and gas exchange. Secondly, it can hold up to 160 sample vials, while other devices only hold up to 24 vials.