Research Article
Two New Reference Materials Based on Tobacco Leaves: Certification for over a Dozen of Toxic and Essential Elements
Table 5
Certified values for INCT-PVTL-6 (
).
(a) Major and minor elements |
| Element | Concentration (wt%) |
| Ca | | K | | Mg | | P | | S | |
|
|
(b) Trace elements (1–1000 mg kg−1) |
| Element | Concentration (mg kg−1) |
| Al | | B | | Ba | | Bra | | Cd | | Cu | | Li | | Mn | | Ni | | Rb | | Sr | | Zn | |
|
|
(c) Trace elements (below 1 mg kg−1) |
| Element | Concentration (ng g−1) |
| Ag | | As | | Ce | | Co | | Era | | Eu | | Hg | | Hfa | | La | | Mo | | Nd | | Pb | | Sb | | Sca | | Sm | | Taa | | Tb | | Th | | V | |
|
|
aCertified on the basis of results by single analytical method.
|