Table 1.
Results summary of concentrations in original samples (Cc, μg·kg−1), rates of standard deviation (RSD, %), and “in-house” accuracy (%) of cadmium (Cd), nickel (Ni), and lead (Pb) determinations in Ecuadorian banana samples and the threshold values (μg·kg−1).
| Provinces | Samples | Cd | Ni | Pb | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cc | RSD | Accuracy | Cc | RSD | Accuracy | Cc | RSD | Accuracy | ||
| Cotopaxi | Cotopaxi 1 | 9.3 | 5.54% | 95.22% | 105.6 | 1.54% | 107.31% | 224.4 | 0.33% | 93.50% |
| Bolívar | Bolívar 1 | 32.5 | 5.38% | 110.34% | 27.7 | 5.93% | 101.29% | 420.9 | 1.88% | 114.62% |
| Los Ríos | Los Ríos 1 | 20.1 | 7.73% | 93.50% | 23.2 | 3.61% | 105.90% | 107.7 | 3.27% | 93.72% |
| Los Ríos 2 | 19.4 | 5.26% | 95.73% | 29.1 | 6.16% | 83.96% | 163.0 | 2.26% | 115.31% | |
| Los Ríos 3 | 30.2 | 5.93% | 96.52% | 21.5 | 6.87% | 112.57% | 193.5 | 2.63% | 106.29% | |
| Cañar | Cañar 1 | 33.5 | 6.68% | 119.78% | 21.8 | 6.32% | 80.63% | 138.1 | 0.78% | 108.48% |
| Azuay | Azuay 1 | 26.0 | 5.55% | 88.49% | 29.8 | 0.83% | 107.39% | 36.9 | 0.81% | 109.31% |
| El Oro | El Oro 1 | 29.8 | 5.39% | 92.73% | 24.9 | 6.40% | 109.60% | 208.2 | 3.47% | 86.55% |
| El Oro 2 | 29.6 | 1.17% | 86.47% | 24.5 | 5.34% | 87.06% | 189.3 | 0.56% | 82.68% | |
| Guayas | Guayas 1 | 17.4 | 7.43% | 105.97% | 30.5 | 6.87% | 108.01% | 276.5 | 3.74% | 111.64% |
| Guayas 2 | 24.3 | 7.77% | 87.96% | 22.3 | 5.58% | 116.60% | 266.5 | 1.18% | 83.36% | |
| Guayas 3 | 17.9 | 5.95% | 101.74% | 21.6 | 5.74% | 116.36% | 40.1 | 3.16% | 88.98% | |
| Santa Elena | Santa Elena 1 | 21.3 | 7.19% | 82.90% | 17.7 | 4.31% | 85.99% | 538.0 | 1.81% | 84.27% |
| Manabí | Manabí 1 | 47.3 | 4.07% | 97.19% | 30.8 | 4.84% | 84.89% | 128.8 | 2.93% | 81.29% |
| Esmeraldas | Esmeraldas 1 | 13.8 | 6.48% | 86.64% | 16.1 | 5.77% | 96.12% | 67.0 | 3.74% | 81.96% |
| Santo Domingo | Santo Domingo 1 | 14.9 | 4.62% | 107.59% | 19.4 | 4.38% | 95.89% | 72.9 | 0.51% | 109.04% |
| Threshold values | 50.0 a | - | - | 300.0 b | - | - | 100.0 a,c | - | - | |
a European Commission. Commission Regulation No 1881/2006 of 19 December 2006 [21]. b EPA-IRIS. Nickel, soluble salts; CASRN Various. Integrated Risk Information System (IRIS) Chemical Assessment Summary [18]. c FAO/WHO General Standard for Contaminants and Toxins in Food and Feed CXS 193-1995 (Revision 2018) [22].