3.4. Platinum
All the tested Spirulina samples had Pt concentrations below the
method’s limit of detection (Table 2). The Pt contents ranged 0.001 mg/kg dw as detected in sample S1 and 0.012 mg/kg dw in
sample S8. The differences in Pt contents were also not very pronounced
in all the tested Spirulina samples (Table 2 and Fig. 1d).