Table 4.
Influence of regions of interest diameter in arsenic quantification by SR-μXRF
| Home A | Home B | Home C | ||
|---|---|---|---|---|
| Region | Regions diameter (mm) |
Home-made dried baby shrimp | “Rely” dried baby shrimp | “Wei Chuan” dried baby shrimp |
| Measured value ±uc (μg/g) | Measured value ±uc (μg/g) | Measured value ±uc (μg/g) | ||
| 1 | 0.1 | 74 ± 5 | - | - |
| 0.5 | 59 ± 1 | - | - | |
| 1 | 41 ± 1 | 29 ± 1 | 11 ± 1 | |
| 2 | 0.1 | 27 ± 3 | - | - |
| 0.5 | 25 ± 1 | - | - | |
| 1 | 26 ± 1 | 18 ± 1 | 10 ± 1 | |
| 3 | 0.1 | 9 ± 2 | - | - |
| 0.5 | 8 ± 1 | - | - | |
| 1 | 7± 1 | 11 ± 1 | 6 ± 1 | |
| 4 | 0.1 | 15 ± 3 | - | - |
| 0.5 | 23 ± 1 | - | - | |
| 1 | 31 ± 1 | 22 ± 1 | 8 ± 1 |