| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| 2.72 | AA |
2000 | Personal Communication, Ohdate Analytical Laboratory | | | | T.Ogami |
| 2.24 | ICPES |
1999 | Personal Communication, Chemex, Canada | | | | Chemex |
| 2.58 | EXRF |
2002 | Personal Communication, Southern Connecticut State Univ., USA | | | | T. Fleming |
| 2.70 | AA |
2002 | The preparation and preliminary characteristsation of four new Geological Survey of Japan geochemical reference materials: soils, JSO-1 and JSO-2; and marine sediments, JMS-1 and JMS-2 | Geostandards Newsletter | 26 | 85-94 | S.Terashima, N.Imai, M.Taniguchi, T.Okai, A.Nishimura |