Table 3.
Linearity, limits and matrix effect of the proposed method in selected insect-based samples.
| Analyte a | Sample | Linear Range (µg/mL) | Matrix Matched Calibration (R2) | MDL (µg/g) b |
MQL (µg/g) b |
ME (%) c |
|---|---|---|---|---|---|---|
| AA | Ins-B-Pine-Coco | 0.1–10 | y = 9.4 × 107x + 1.7 × 106 (0.999) | 0.4 | 1.3 | 112 |
| Ins-C-Toma | 0.1–10 | y = 1.1 × 108x + 5.6 × 106 (0.998) | 0.8 | 1.4 | 142 | |
| Ins-F | - | - | - | - | - | |
| F | Ins-B-Pine-Coco | 0.5–10 | y = 5.7 × 106x + 8.5 × 105 (0.998) | 2.4 | 7.9 | 15 |
| Ins-C-Toma | 0.5–10 | y = 5.0 × 106x + 6.1 × 105 (0.997) | 2.7 | 8.8 | 2 | |
| Ins-F | 0.5–10 | y = 4.7 × 106x + 3.3 × 106 (0.999) | 2.6 | 8.5 | −6 | |
| MF | Ins-B-Pine-Coco | 0.2–10 | y = 3.3 × 107x + 4.0 × 106 (0.996) | 0.9 | 3.1 | 19 |
| Ins-C-Toma | 0.5–10 | y = 2.9 × 107x + 1.6 × 106 (0.998) | 1.9 | 6.5 | 5 | |
| Ins-F | 0.5–10 | y = 2.8 × 107x + 5.0 × 106 (0.995) | 1.7 | 5.7 | 0 | |
| HMF | Ins-B-Pine-Coco | 0.1–10 | y = 3.6 × 107x + 9.2 × 106 (0.991) | 0.5 | 1.5 | 27 |
| Ins-C-Toma | 0.2–10 | y = 1.0 × 107x + 4.5 × 105 (0.998) | 1.0 | 3.3 | −65 | |
| Ins-F | 0.2–10 | y = 1.1 × 107x + 2.9 × 106 (0.997) | 0.6 | 2.1 | −60 |
a AA: acrylamide; F: furfural; MF: 5-methylfurfural; HMF: hydroxy-methyl-furfural. b MDL: method detection limit and MQL: method quantification limit. c ME: matrix effect calculated as: (slope matrix-matched/slope solvent-based) − 1) × 100.