Research Article

Determination of Aluminium and Physicochemical Parameters in the Palm Oil Estates Water Supply at Johor, Malaysia

Table 2

Certified values and achieved values for SRM 1643e.

ElementsUnitsCertifiedAchievedPercent of recovery (%)

Aluminium 𝜇 g/L 1 4 1 . 8 0 ± 8 . 6 0 1 4 7 . 5 9 ± 4 4 . 8 5 104.08
Arsenic 𝜇 g/L 6 0 . 4 5 ± 0 . 7 2 5 8 . 1 4 ± 6 . 6 8 96.2
Cadmium 𝜇 g/L 6 . 5 7 ± 0 . 0 7 6 . 2 8 ± 1 . 5 0 95.6
Chromium 𝜇 g/L 2 0 . 4 0 ± 0 . 2 4 2 3 . 2 ± 3 . 9 2 113.7
Lead 𝜇 g/L 1 9 . 6 3 ± 0 . 2 1 1 9 . 5 7 ± 3 . 7 8 99.7