All SPE manifolds are supplied with three-way valves that allow the venting to atmosphere of each station without affecting the vacuum in the rest of the system
SPE manifolds are manufactured from corrosion-resistant stainless steel
SPE apparatus comes with 300 mL funnels and 47 mm support bases
Valves have stainless steel bodies with PTFE plugs
SPE funnels have a sharp edge on the bottom inside diameter that, combined with the stronger spring in our aluminum clamps, minimizes any horizontal capillary action of the sample and solvent into the disk
Extracted samples can be collected directly into K-D concentrator tubes, EPA water analysis vials, sample vials and test tubes up to 30 mm OD x 100 mm high
PTFE-coated stainless steel support screen reduces the possibility of sample-to-sample cross-contamination compared to the traditional glass frit
PTFE coating also protects the support screen from corrosion caused by acid-preserved samples
SPE support bases with 40-35 outer Standard Taper joints have a specially designed internal surface that reduces dead volume and minimizes holdback of the extracted analyte
