Instrument: osmotic pump
A pump that uses osmotic pressure to collect water samples.
An example of an osmotic pump is an OsmoSampler (Jannasch et al., 2004) which has no electrical or mechanical parts.
References:
Jannasch Hans W. , Wheat C. Geoff , Plant Josh N. , Kastner Miriam , Stakes Debra S. , (2004),Continuous chemical monitoring with osmotically pumped water samplers: OsmoSampler design and applications, Limnol. Oceanogr. Methods, 2, doi:10.4319/lom.2004.2.102.
OsmoSamplers are long-term osmotically pumped fluid samplers. For more information see the following reference:
Jannasch Hans W. , Wheat C. Geoff , Plant Josh N. , Kastner Miriam , Stakes Debra S. , (2004),Continuous chemical monitoring with osmotically pumped water samplers: OsmoSampler design and applications, Limnol. Oceanogr. Methods, 2, doi:10.4319/lom.2004.2.102.