| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|---|---|---|---|---|---|---|
| 1.56 | NAA | 1998 | Personal communication,Lucas Heights Science and Technology center ,Australia | H.Waldron | |||
| 1.43 | ICPMS | 1994 | Personal Communication,WSU GeoAnalytical Laboratory, USA | C. Knaack, S. Cornelius and P. Hooper | |||
| 1.43 | ICPMS | 2000 | Personarl Communication,Washington State University | D. Johnson | |||
| <5 | EXRF | 2002 | Personal Communication, Southern Connecticut State Univ., USA | T. Fleming |