Table 2.
Level of trace element in subjects’ hair according to digestion method (μg/g)
| Element | Digestion Methods Mean (SD); n= 20 |
P values | ||
|---|---|---|---|---|
|
| ||||
| Wet Acid (HNO3) | Wet Acid (HNO3 & H2O2) | Dry Ash | ||
| Cu | 10.673 (1.84) | 10.822 (1.09) | 8.014 (1.31)a,b | 0.009 |
| Se | 0.312 (0.05) | 0.380 (0.05)a | 0.147 (0.03)a,b | < 0.001 |
| Mn | 3.941 (0.91) | 3.319 (0.65)a | 9.550 (2.00)a,b | < 0.001 |
| Mg | 49.67 (3.76) | 45.09 (5.07)a | 38.10 (6.05)a,b | < 0.001 |
| Zn | 294.45 (49.93) | 275.12 (44.74)a | 240.96 (23.69)a,b | < 0.001 |
One-way repeated measure ANOVA test.
a
Significantly different (P < 0.05) compared to wet acid (HNO3) method.
b
Significantly different (P < 0.05) compared to wet acid (HNO3 & H2O2) method