Table 2.

Concentrations of gelatine standards (concentrations given in ng g⁻¹).

Element	Blank	1	2	3	4	5
Gd	1.33 ± 0.06	16.78 ± 0.15	61.15 ± 0.40	241.08 ± 1.86	892.85 ± 4.87	3523.06 ± 13.53