[en] The aim of this experiment was to measure ⁹⁹Tc in Icelandic coastal water with ICP-MS using simple chemical separation process. Coastal water was chosen because it is easy to sample and has low concentration of ⁹⁹Tc. The idea was that if Coastal water could be measured then other seawater types would be measurable. Emphasis was made to have the chemical separation process as simple as possible to avoid contamination of the sample with metals coming from various reagents. Even though the results are considerably higher than those reported by radio counting methods we have not found any interferences that could count for such high signal apart from those discussed and have been corrected for. The values measured show the same pattern as seaweed measurements with higher concentration on the north coast and lower concentration on the south cost which means we are not measuring a random signal. The separation process used was relatively fast and simple and the samples were well acceptable for ICP-MS measurements. The relatively short sample preparation time and simplicity of the process is a property which is essential when large number of sample need to be measured in a short period of time for instance in emergency situation. High Mo concentration was disappointing and slight modification of the process to reduce Mo concentration would be helpful and increase the measurements sensitivity. (ln)