Crude oil | Parameter | V | Ni | Cu | Fe |
1 | (Average) | 81.78 | 17.28 | 4.12 | 25.06 |
SD (+/−) | 0.992 | 1.128 | 0.130 | 0.760 | |
RSD (+/− %) | 1.21 | 6.53 | 3.15 | 3.03 | |
2 | (Average) | 109.9 | 24.26 | 3.68 | 1.56 |
SD (+/−) | 3.438 | 0.760 | 0.217 | 0.055 | |
RSD (+/− %) | 3.13 | 3.13 | 5.89 | 3.52 | |
3 | (Average) | 115.82 | 24.48 | 3.04 | 2.94 |
SD (+/−) | 3.345 | 0.576 | 0.260 | 0.498 | |
RSD (+/− %) | 2.88 | 2.35 | 8.5 | 16.93 | |
4 | (Average) | 102.0 | 27.42 | 2.3 | 12.38 |
SD (+/−) | 6.001 | 0.855 | 0.173 | 1.136 | |
RSD (+/− %) | 5.88 | 3.13 | 7.53 | 9.17 | |
5 | (Average) | 272.4 | 50.4 | 7.2 | 16.76 |
SD (+/−) | 5.683 | 0.219 | 0.521 | 0.747 | |
RSD (+/− %) | 2.08 | 0.43 | 7.23 | 4.45 |