| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 3.39 | INAA |
1989.04 | Personal communication, Aoyama Gakuin University, Japan | | | | K.Kimura and K.Arai |
| 3.3 | FAA |
1991.04 | Determination of platinum and palladium in sixty-eight geochemical reference samples by flameless atomic absorption spectrometry | Geost. Newsletter | 15 | 125-128 | S.Terashima |
| 2.8 | FAA |
1990.1 | Gold, palladium and tellurium in South African, Chinese and Japanese geological reference samples | Geost. Newsletter | 14 | 477-478 | E.Kontas, H.Niskavaara and J.Virtasalo |
| 1.9 | ICPMS |
1997 | Personal communication,GFZ-Potsdam,Germany | | | | H.G.Plessen and J.Erzinger |
| 1.9 | ICPMS |
1999 | Determination of the Platinum-Group Elements and Gold in Twenty Rock Reference Materials by Inductively Coupled Plasma-Mass Spectrometry(ICP-MS)after Pre-Concentration by Nickel Sulfide Fire Assay | Geostandards Newsletter | 22 | 187-194 | Hans-Gerrit Plessen and Jorg Erzinger |