| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| 1.33 | COLOR |
1980 | Spectrophotometric determinatino of molybdenum and tungsten in forty geochemical reference samples | Geostandards Newsletter | 4 | 9-12 | S.Terashima |
| 2.0 | COLOR |
1985 | Absorptometric determination of tungsten in rocks after selective adsorption on Sephadex gel. | Anal. Chem. | 57 | 1416-1418 | U.Hase, K.Yoshimura and T.Tarutani |
| 1.6 | NAA |
1979.02 | Personal communication, Nihon Inspection Ltd., Tokyo Res. Center, Japan | | | | Y.Saito |
| 1.40 | ICPMS |
1992 | Determination of trace and ultra-trace elements in 32 international geostandards by ICP-MS | Jour.Min.Pet.Econ.Geol | 87 | 107-122 | T.Yoshida,S.Yamasaki and A.Tsumura |