| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 0.0027 | NAA |
1974 | Personal communication, Kanazawa Univ., Japan | | | | K.Terada |
| 0.003 | FLUOR |
1984 | Personal communication, Konan Univ., Japan. | | | | Y.Tamari |
| <0.01 | HAA |
1984 | Determinaiton of selenium in twenty-eight geological reference materials by atomic absorption spectrometry | Geostandards Newsletter | 8 | 39-41 | N.Imai, S.Terashima and A.Ando |
| 3.2 | NAA |
1979.02 | Personal communication, Nihon Inspection Ltd., Tokyo Res. Center, Japan | | | | Y.Saito |
| 0.0028 | FLUOR |
1984.12 | Personal communication, Konan University, Japan | | | | Y.Tamari |
| 3.5 | INAA |
1980.02 | Neutron activation analysis of Japanese standard rocks | J. Radioanal. Chem. | 59 | 245-248 | H.Nakahara, K.Masago, Y.Nakamura, K.Horiuchi and Y |