Comparison of Elemental Blood Analysis in Intact and Dry Samples: Porous Membranes as a New Sampling Format

The possibility of using dry blood samples on porous glass fiber membrane carriers (PGMCs) for the quantitative elemental analysis of blood using the method of inductively coupled plasma mass spectrometry (ICP–MS) is demonstrated. The results of the elemental analysis of intact blood and its dry samples are compared. It is shown that regardless of the state of the samples (wet and dry), as well as the method of sample preparation (different volumes of elution solution), the content of the corresponding elements in dry samples fully corresponds to the content of elements in whole blood and to the reference values according to the published data.