Table 1 Trace elements in two certified reference human hairs (IAEA085 and IAEA086)
From: Revisited digestion methods for trace element analysis in human hair
Sample | Method | Temperature (°C) | Volume of H2O2 (mL) | Number of digestion | Ca (μg/g) | Cu (μg/g) | Mg (μg/g) | Mn (μg/g) | Sr (μg/g) | Zn (μg/g) |
|---|---|---|---|---|---|---|---|---|---|---|
IAEA085a | 929 | 16.8 | 140 | 8.8 | – | 163 | ||||
IAEA085-70 | Method 1 | 70 | 0.2 | 1 | 815 (88) | 14.6 (87) | 123 (88) | 6.4 (73) | 7.6 | 137 (84) |
IAEA085-160 | Method 2 | 160 | 0.2 | 1 | 818 (88) | 14.4 (86) | 127 (91) | 6.9 (79) | 7.5 | 127 (78) |
IAEA085-160HP | Method 3 | 160 | 0.4 | 1 | 845 (91) | – | 127 (91) | 8.6 (98) | 7.5 | 157 (96) |
IAEA085-160HP-replicate | 842 (91) | 15.3 (91) | 126 (90) | 8.6 (98) | 7.4 | 158 (97) | ||||
IAEA085-70S | Method 4 | 70 | 0.2 | 2 | 805 (87) | 14.8 (88) | 121 (87) | 6.1 (69) | 7.9 | 173 (106) |
IAEA085-160S | Method 5 | 160 | 0.2 | 2 | 947 (102) | 17.3 (103) | 141 (101) | 8.6 (98) | 9.1 | 179 (110) |
IAEA086a | 1120 | 17.6 | 177 | 9.6 | 8.4 | 167 | ||||
IAEA086-70 | Method 1 | 70 | 0.2 | 1 | 884 (79) | 15.2 (86) | 139 (79) | 8.4 (87) | 7.7 (92) | 158 (95) |
IAEA086-160 | Method 2 | 160 | 0.2 | 1 | 940 (84) | 15.5 (88) | 142 (80) | 8.6 (89) | 7.8 (93) | 161 (96) |
IAEA086-160HP | Method 3 | 160 | 0.4 | 1 | 1106 (99) | – | 174 (98) | 9.7 (101) | 8.8 (105) | 156 (94) |
IAEA085-160HP-replicate | 1067 (95) | 15.8 (90) | 170 (96) | 9.8 (102) | 8.6 (102) | 158 (95) | ||||
IAEA086-70S | Method 4 | 70 | 0.2 | 2 | 939 (84) | 15.6 (88) | 142 (80) | 8.6 (90) | 7.9 (95) | 159 (96) |
IAEA086-160S | Method 5 | 160 | 0.2 | 2 | 957 (85) | 16.7 (95) | 148 (84) | 8.8 (91) | 8.3 (99) | 165 (99) |