Table 4.
Components of dried blood spot (DBS) cards
| DBS card | Material of paper | Impregnated chemicals | Paper thickness (μm) |
|---|---|---|---|
|
Whatman FTA DMPK-A (QIAcard FTA DMPK-A) |
Cellulose based |
Radical inhibitors (sodium dodecyl sulfate, tris (hydroxymethyl)aminomethane) |
562 |
|
Whatman FTA DMPK-B (QIAcard FTA DMPK-B) |
Cellulose based |
Chaotropic agents (guanidium thiocyanate) |
744 |
|
Whatman FTA DMPK-C (QIAcard FTA DMPK-C) |
Cotton based | No coating | 524 |
| 903 protein saver card | Cotton based | No coating | 509 |