Preconcentration and separation of 99 Tc in groundwater by using TEVA resin

A procedure by using TEVA resin to preconcentrate and separate 99Tc in groundwater was developed. 99Tc was efficiently preconcentrated from 5000 mL of water sample at a flow rate of 50 mL min−1 by using a 2 mL of TEVA resin column based on the high affinity of TcO4 − with TEVA resin in 0.1 mol L−1 HCl media. 99Tc was further purified by using another 2 mL of TEVA resin column and determined by ICP-MS. The developed procedure was validated by the spiked samples and applied to 99Tc analysis in monitor well water samples.