where do you want to applicate the tracer, field, lysimeter or just lab. column (lab)? In order to answer your question it would be helpful to give more detail information about your project.
Hi Hossein: Please be specific with the element and as very rightly mentioned by Dr Jannis Groh also spell out your nature of study. Than it will be easier to answer. Regards
Hi Hossein: looking for Florence, T. M., “Anodic stripping voltammetry with a glassy carbon electrode mercury-plated in situ”, J. Electroanal. Chem. 27, 273 (1970)
perhaps TDR-measurements are suitable for your approach (fast and low cost), look at:
Vogeler, I., C. Duwig, B.E. Clothier and S.R. Green. 2000. A Simple Approach to Determine Reactive Solute Transport Using Time Domain Reflectometry. Soil Sci. Soc. Am. J. 64: 12-18. doi:10.2136/sssaj2000.64112x.