| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 0.136 | FLUOR |
1984.12 | Personal communication, Konan University, Japan | | | | Y.Tamari |
| 0.17 | 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 |
| 0.5 | INAA |
1996 | A Self-Consistent Compilation of Elemental Concentration Data for 93 Geochemical Reference Samples | Geostandards Newsletter | 20 | 217-245 | Randy L.Korotev |
| 135 | ICPMS |
1997 | Determination of As,Bi,Sb,Se and Te in Fifity Five Reference Materials by Hydride Generation ICP-MS | Geostandards Newsletter | 21 | 85-91 | G.E.M.Hall and J.C Pelchat |