Technetium [99mTc] generator and separation method

The invention is suitable for the technical field of generators, and provides a technetium [99mTc] generator and a separation method, the technetium [99mTc] generator comprises: a chromatographic column; the leaching pipeline comprises a plurality of sections; the leaching power part is connected to the inlet end of the chromatographic column through a leaching pipeline, and the leaching power part is used for conveying leaching liquid or air to the chromatographic column through the leaching pipeline; the needle type filter with the exhaust valve is used for sterilizing the technetium [99mTc]-containing radioactive solution and removing air in the technetium [99mTc]-containing radioactive solution, and the needle type filter with the exhaust valve is connected to the outlet end of the chromatographic column through a leaching pipeline; the collecting bottle is used for collecting the technetium [99mTc]-containing radioactive solution, and the collecting bottle is connected to the needle type filter with the