| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|---|---|---|---|---|---|---|
| 12.9 | EXRF | 2002 | Personal Communication, Southern Connecticut State Univ., USA | T. Fleming | |||
| 17.9 | ICPES | 2002 | Personal Communication, Chemex lab., Canada | Chemex |