Table 1.
Elements | Observations | GSS-5 ± STD | Certified ± STD | Recovery % | GSS-8 ± STD | Certified ± STD | Recovery % |
---|---|---|---|---|---|---|---|
Cr (mg/kg) | 6 | 118 ± 10 | 118.17 ± 8.18 | 100.14% | 68.0 ± 8.0 | 66 ± 2.7 | 97.06% |
Ni (mg/kg) | 6 | 40 ± 5 | 40.67 ± 3.33 | 101.68% | 31.5 ± 2.7 | 33.2 ± 1.9 | 105.40% |
Cu (mg/kg) | 6 | 166 ± 9 | 164.00 ± 7.32 | 98.80% | 24.3 ± 1.8 | 23.4 ± 2.2 | 96.30% |
Zn (mg/kg) | 6 | 494 ± 39 | 491.50 ± 22.13 | 99.49% | 68 ± 6 | 65.3 ± 2.5 | 96.03% |
As (%) | 6 | 4.12 ± 2.4 | 414.67 ± 20.55 | 100.65% | 12.7 ± 1.7 | 12.4 ± 0.5 | 97.64% |
Hg (mg/kg) | 6 | 290 ± 40 | 302.33 ± 9.48 | 104.25% | 17 ± 4 | 15.7 ± 3.4 | 92.35% |
Cd (%) | 6 | 045 ± 0.09 | 0.46 ± 0.05 | 102.22% | 1300 ± 500 | 1291 ± 70 | 99.31% |
Pb (mg/kg) | 6 | 552 ± 44 | 562.00 ± 42.98 | 101.81% | 21.0 ± 3.0 | 21.5 ± 2.3 | 102.38% |
Elements mg/kg | Observations | GBW08503 /GSV-3 ± STD | Certified ± STD | Recovery % | GBW10012 /GSV-3 ± STD | Certified ± STD | Recovery % |
Cr | 12 | 0.55 ± 0.07 | 0.53 ± 0.04 | 96.36% | 0.55 ± 0.07 | 0.50 ± 0.01 | 90.91% |
Ni | 12 | 1.9 ± 0.3 | 2.0 ± 0.1 | 105.26% | 0.097 ± 0.014 | 0.095 ± 0.014 | 97.94% |
Cu | 12 | 4.40 ± 0.31 | 4.55 ± 0.41 | 103.41% | 0.66 ± 0.08 | 0.63 ± 0.08 | 95.45% |
Zn | 12 | 22.7 ± 2.0 | 21.64 ± 1.44 | 95.33% | 2.9 ± 0.3 | 3.02 ± 0.42 | 104.14% |
As | 12 | 0.22 ± 0.02 | 0.21 ± 0.02 | 95.45% | 0.028 ± 0.006 | 0.03 ± 0.01 | 107.14% |
Hg | 12 | 0.026 ± 0.003 | 0.025 ± 0.003 | 96.15% | 0.026 ± 0.003 | 0.025 ± 0.003 | 96.15% |
Cd | 12 | 0.031 ± 0.002 | 0.031 ± 0.005 | 100.00% | 0.32 ± 0.07 | 0.33 ± 0.04 | 103.13% |
Pb | 12 | 0.35 ± 0.08 | 0.36 ± 0.07 | 102.86% | 0.07 ± 0.02 | 0.07 ± 0.01 | 100.00% |