Frontier Science Center for Rare Isotopes;
Lanzhou University;
Lanzhou 730000;
China;
School of Nuclear Science and Technology;
Lanzhou University;
Lanzhou 730000;
China;
Beijing National Laboratory for Molecular Sciences;
Fundamental Science Laboratory on Radiochemistry&Radiation Chemistry;
College of Chemistry and Molecular Engineering;
Peking University;
Beijing 100871;
China;
Key Laboratory of Special Function Materials and Structure Design;
Ministry of Education;
Lanzhou University;
Lanzhou 730000;
China;
CNNC Lanzhou Uranium Enrichment Co.;
Ltd.;
Lanzhou 730000;
China;
Environmental Monitor Center of Gansu Province;
Lanzhou 730000;
China;
Inorganic selenium; Speciation; Automatic system separation; Rapid determination; Water sample;