Research Article

Evaluation of Minerals Content of Drinking Water in Malaysia

Table 1

AAS analytical conditions for determination of minerals in drinking water and mineral water samples.

ElementWavelength (nm)Slit width (nm)Nebulizer rate (mL/min)Optimum working range (μg/mL)Standard working range (μg/mL)Sensitivity (μg/mL)CRM values (mg/mL)

Na589.00.55.00.18–0.710–10000.00414.3–61.6
Mg285.20.55.00.1–0.410–10000.0037.32–23.8
K766.50.55.00.4–1.510–10000.0080.5–9.67
Ca422.70.55.01–410–10000.0214.3–39.9
Fe248.30.25.02–91–500.050.05–0.21
Cu324.70.55.01–51–500.025
Zn213.90.55.00.4–1.51–500.008
Cr357.90.25.02–151–500.05
Mn279.50.25.01–3.61–500.020.02–0.05
Ni232.00.25.01.8–8.01–50.04
As193.71.05.030–1901–50.64
Cd228.80.55.00.2–1.81–50.009
Pb283.30.55.07.0–4601–50.16
Fl0.1–20.0a
Cl2.5–60.0a26.4–50.2
NO30.1–25.0a25.8–50.7
SO41.0–35.0a27.0–57.9

aConcentration of minerals in mg/L.