Table 5 Prediction of Co(II), Ni(II), and Zn(II) values in four commercial oligomineral supplements by the PLS model, from UV-vis spectra measurements, using PAN-CC
From: Low-cost, disposable colourimetric sensors for metal ions detection
Fisiosol® | cd (mg/2 mL) | cd (mM) | cm (mM) | e% |
Co(II) | 0.0726 | 0.616 | 0.55 (1) | − 11 |
Ni(II) | 0.0726 | 0.618 | 0.68 (9) | 10 |
Zn(II) | 0.0674 | 0.515 | 0.48 (8) | − 7 |
Oligosol® | cd (mg/2 mL) | cd (mM) | cm (mM) | e% |
Co(II) | 0.0726 | 0.616 | 0.54 (8) | − 12 |
Ni(II) | 0.0726 | 0.618 | 0.7 (2) | 13 |
Zn(II) | 0.0674 | 0.515 | 0.45 (1) | − 13 |
Catalitic® | cd (mg/2 mL) | cd (mM) | cm (mM) | e% |
Co(II) | 0.062 | 0.526 | n.d. | / |
Ni(II) | 0.088 | 0.750 | 0.8 (7) | 6 |
Zn(II) | 0.314 | 2.4 | 2.1 (4) | − 13 |
Gammadyn® | cd (mg/2 mL) | cd (mM) | cm (mM) | e% |
Co(II) | 0.073 | 0.619 | n.d. | / |
Ni(II) | 0.073 | 0.622 | 0.6 (3) | − 3 |
Zn(II) | 0.067 | 0.512 | 0.5 (3) | 1 |