Abstract: The instant application relates to a collection kit for obtaining specimens from urine. The collection kit, according to instant invention, includes a collection receptacle, a denaturizing agent, an acid, a delivery device, a first cartridge, a resin cartridge including a resin, and a sterile packaging device. The first cartridge is adapted to filter out organic compounds, while the resin possesses an affinity to bind a nuclide. The sterile packaging device contains the collection receptacle, the denaturizing agent, the acid, the delivery device, the first cartridge, and the resin cartridge.