| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| 0.34 | ICPMS |
1994 | Personal communication, National Geophysical Research Institute | | | | V.Balaram |
| 0.400 | ICPMS |
1997 | Low-Level Analysis of Lanthanides in Eleven Silicate Rock Reference Materials by ICP-MAS After Group Separation Using Cation-Exchange Chromotography | Geostandards Newsletter | 21 | 43-50 | C.Pin and S.Joannon |
| <8 | XRF |
1998 | Personal communication,GEOMAR,Germany | | | | K.Wolf |
| 0.38 | ICPMS |
1998 | Personal communication,M.Watanabe,MKK,Tokyo, Japan | | | | M.Watanabe |
| 0.418 | ICPMS |
1998 | Personal communcation,Universite de Liege,Belgium | | | | I.Roelandts |
| 0.45 | ICPMS |
1994 | Personal Communication,WSU GeoAnalytical Laboratory, USA | | | | C. Knaack, S. Cornelius and P. Hooper |
| 0.45 | ICPMS |
2000 | Personarl Communication,Washington State University | | | | D. Johnson |
| 0.38 | ICPMS |
2000 | Personarl Communication, Tohoku Univ. | | | | T. Ohba, T. Sugihara, T. Horie, S. Kawate |
| 0.415 | ICPMS |
2001 | Reference Materials for Geochmical Studies: New Analytical Data by ICP-MS and Critical Discussion of Reference Values | Geostandards Newsletter | 25 | 87-125 | P. Dulski |