globalchange  > 气候变化与战略
DOI: 10.5194/hess-22-4281-2018
论文题名:
Technical note: GUARD - An automated fluid sampler preventing sample alteration by contamination; evaporation and gas exchange; suitable for remote areas and harsh conditions
作者: Hartmann A.; Luetscher M.; Wachter R.; Holz P.; Eiche E.; Neumann T.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2018
卷: 22, 期:8
起始页码: 4281
结束页码: 4293
语种: 英语
Scopus关键词: Environmental regulations ; Laws and legislation ; Volatile organic compounds ; Environmental researches ; Health regulations ; Hydrological cycles ; Laboratory and field experiments ; Long term stability ; Low-power consumption ; Public and private sector ; Volatile compounds ; Evaporation ; environmental research ; evaporation ; experimental study ; gas exchange ; laboratory method ; operations technology ; regulatory approach ; sampler ; sampling ; toxic substance ; water pollution
英文摘要: Automated water sampling devices adapted to field operation have proven highly useful for environmental research as well as in the public and private sectors, where natural or artificial waters need to be tested regularly for compliance with environmental and health regulations. Such autosamplers are already available on the market in slightly differing versions, but none of these devices are capable of sealing the collected samples to prevent sample alteration by contamination, evaporation or gas exchange. In many sampling cases, however, this feature is essential, for instance for studying the hydrological cycle based on isotopes in rainwater, or for monitoring waters contaminated with toxic gases or other volatile compounds detrimental to biota and human health. Therefore, we have developed a new mobile autosampler, which injects water samples directly into airtight vials, thus preventing any sample alteration. Further advantages include low production costs, compact dimensions and low weight allowing for easy transport, a wide range of selectable sampling intervals as well as a low power consumption, which make it suitable for long-term applications even in remote areas and harsh (outdoor) conditions due to its heavy-duty water-proof casing. In this paper, we demonstrate (1) the sampler's mechanical functioning, (2) the long-term stability of the collected samples with regard to evaporation and gas exchange and (3) the potential of our device in a wide variety of applications drawing on laboratory and field experiments in different karst caves, which represent one of the most challenging sampling environments. © Author(s) 2018.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163227
Appears in Collections:气候变化与战略

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作者单位: Hartmann, A., Institute of Applied Geosciences, Karlsruhe Institute of Technology, Karlsruhe, 76131, Germany; Luetscher, M., Swiss Institute for Speleology and Karst Studies (SISKA), La Chaux-de-Fonds, 2301, Switzerland; Wachter, R., Institute of Applied Geosciences, Karlsruhe Institute of Technology, Karlsruhe, 76131, Germany; Holz, P., Institute of Applied Geosciences, Karlsruhe Institute of Technology, Karlsruhe, 76131, Germany; Eiche, E., Institute of Applied Geosciences, Karlsruhe Institute of Technology, Karlsruhe, 76131, Germany; Neumann, T., Institute of Applied Geosciences, University of Berlin, Berlin, 10587, Germany

Recommended Citation:
Hartmann A.,Luetscher M.,Wachter R.,et al. Technical note: GUARD - An automated fluid sampler preventing sample alteration by contamination; evaporation and gas exchange; suitable for remote areas and harsh conditions[J]. Hydrology and Earth System Sciences,2018-01-01,22(8)
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