Research Article
Removal of Hardness of Earth Alkaline Metals from Aqueous Solutions by Ion Exchange Method
Table 2
Instrumental parameters for determination of calcium and magnesium [
29].
| Instrumental parameters | Calcium | Magnesium |
| Wave length (nm) | 442,67 | 442,67 | Slit width (nm) | 2,7 | 2,7 | Fuel | Acetylene/air | Acetylene/air | Lamp current (mA) | 20 | 20 | Optimum working range | (0.5–2.5) mg/L | (0.2–1.0) mg/L |
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