Funnels
Initially extracts were applied to the upper column via a disposable syringe. Although this way of applying the sample extracts prevent any cross contamination we observed sometimes a small leakage. Especially in case of a viscous extract small leakage might occur. To overcome this problem we developed a special tool the so called DSP-Funnel. The funnel fits exactly on top of the upper column and the funnel is anodised assuring inertness. After use of the funnel it can be easily cleaned