Dear Researchgater,

I need again you help, it would be great if you could provide your advices.

I would like to sample water infiltrating through the vadose zone for analysis of trace metals (Cd, Ni, Pb, Cu, Zn) and emerging organic contaminants (mainly pharmaceuticals).

Do you know any suction cup suitable for both type of contaminants? We have stainless steel suction cups (Soil Measurement System) for pharmaceutical sampling but they are not recommended for trace metals. On the other hand, all plastic materials are not suitable for organics.

Do you have any clue?

Thank you very much for your help,

Best regards,

Raffaella