| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 0.13 | 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 |
| 0.064 | INAA |
1985.1 | Analysis of standard rock samples by neutron activation, x-ray fluorescence and Mossbauer Methods(Abst.,in Japanese) | 29 Symp. Radioch. | | | Y.Minai, M.Ebihara, K.Sakamoto, N.Aota, R.Matsumot |
| 0.13 | NAA |
1986.1 | Personal communication, Aoyama Gakuin University, Japan | | | | Y.Hirao |
| 0.12 | FAA |
1988.04 | Determination of gold in sixty geochemical reference samples by flameless atomic absorption spectrometry | Geost. Newsletter | 12 | 57-60 | S.Terashima |
| 0.13 | FAA |
1991.07 | Personal communication, Geological Survey of Japan | | | | S.Terashima |