气候变化领域集成服务门户(CCPortal): Technical note: GUARD - An automated fluid sampler preventing sample alteration by contamination; evaporation and gas exchange; suitable for remote areas and harsh conditions

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DOI	10.5194/hess-22-4281-2018
	Technical note: GUARD - An automated fluid sampler preventing sample alteration by contamination; evaporation and gas exchange; suitable for remote areas and harsh conditions
	Hartmann A.; Luetscher M.; Wachter R.; Holz P.; Eiche E.; Neumann T.
发表日期	2018
ISSN	1027-5606
起始页码	4281
结束页码	4293
卷号	22 期号:8
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.
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
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159944
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
推荐引用方式 GB/T 7714	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],2018,22(8).
APA	Hartmann A.,Luetscher M.,Wachter R.,Holz P.,Eiche E.,&Neumann T..(2018).Technical note: GUARD - An automated fluid sampler preventing sample alteration by contamination; evaporation and gas exchange; suitable for remote areas and harsh conditions.Hydrology and Earth System Sciences,22(8).
MLA	Hartmann A.,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".Hydrology and Earth System Sciences 22.8(2018).