With the Rhizon soil moisture sampler, we supply a range of miniature soil moisture samplers. The Rhizon samplers are used for repeated and reliable sampling of all dissolved components in the soil solution. The porous plastic material (PES) wets spontaneously and has standard 0.15-micron pores. The samplers are supplied with coextruded tubing (PE inside / PVC outside) 1 mm internal diameter, Luer connector and protective cap. The sampler is reinforced by a wire. The dissolved organic and inorganic matter will not absorb on the soil moisture sampler. The sampler is placed preferably horizontally in moist soil. Water acts as a lubricant during inserting. Due to the minimal disturbance, the soil will quickly settle, resulting in good sampler-soil contact.
Benefits Rhizon soil moisture samplers
- Minimal disturbance of hydraulic properties of the soil.
- Low dead volume < 0.5 ml.
- Minimal ion exchange capacity (less than soil).
- pH is not changed by sampling.
- Complete sampling systems (can be cleaned before use to suit specific demands).
- The sample is filtered and can be analysed directly.
- Inexpensive.
Remarks
- Check applicability for your type of analyses
- Large organic polymolecules/colloïds withheld
- Plastic membrane; some sorption on organics
Applications
The Rhizon soil moisture samplers are very suitable for pot-, cylinder- and column research (Macro Rhizons for field research). Rhizon samplers are used when several soil solution samples are needed for the same soil volume in the research of:
- Plant uptake of soluble nutrients as nitrate.
- The solubility of metals in soil.
- Transport of soluble components in soil.
- Accumulation of salts, etc.
- Environmental research.
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