Modified Hesslein In-Situ Pore Water Sampler, PTFE 300ml

The Modified Hesslein In-situ Pore Water Sampler, also called a "peeper" or dialyzer is based on the principle that given enough time, a contained quantity of water in the sampler will diffuse and equilibrate through dialysis membrane, or other materials such as porous TEF, with the surrounding water and its dissolved solutes. The in-situ equilibrator can either be removed to the surface or the pore water can be collected through attached tubing while the device remains in the sediments.

This sampler is made of teflon.

 NOTE:  This is not a stocked item and will have a long lead time.  Minimum order of ten (10) units is required.