| 摘要 |
A soil solution sampler is constructed of stainless steel by joining a porous stainless steel tube to a non-porous stainless steel tube to form a soil solution receptacle. Air and sample transfer conduits extend from the earth's surface into the receptacle. By drawing a vacuum on the air conduit, soil solution is drawn through the porous wall into the buried sampler. After collection, the sample is transferred to the surface through the sample transfer conduit by applying positive air pressure to the air conduit. In one embodiment, a divider wall having a port and one-way check valve separates the receptacle into an upper soil solution entry chamber having a porous wall, and a lower collection chamber into which the air and sample transfer conduits extend.
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