Can the Dissolved Iron Chemkey® Reagents be used with digested samples?
Dissolved Iron Chemkey® with digested samples
The Dissolved Iron Chemkey® Reagents (box of 25; Catalog Number/Order Code 8636000) follow the Iron, Dissolved, 1,10-Phenanthroline Method 10281 which only mentions dissolved iron. Given the similarities in chemistry between the powder pillow and the Chemkey® customers could use digested samples if the sample pH is adjusted to within 3 - 5 pH with NaOH after digestion ( Iron,Total FerroVer® Method 8008). However, it should be made plain that digested samples have not been tested as a part of development for this Chemkey®.