| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 2.7 | NAA |
1972 | Neutron activation analysis of selenium and osmium in rocks and sediments by direct evolution with the condensed phosphric acid reagents. | Annual Meeting Geochem Sco. Japan | | | K.Terada, K.Terashima and T.Kiba |
| <5 | NAA |
1980 | Determination of seven noble metals in standard rock samples by means of thermal neutron activation analysis | Radioisotopes | 29 | 8-12 | M.Ayabe, Y. Hirao and K. Kimura |
| <100 | NAA |
1979.02 | Personal communication, Nihon Inspection Ltd., Tokyo Res. Center, Japan | | | | Y.Saito |