Determination of Trace Amount of Cadmium by Atomic Absorption Spectrometry in Table Salt after Solid Phase Preconcentration Using Octadecyl Silica Membrane Disk Modified by a New Derivative of Pyridine

<table>Effect of solution pH on recovery (%) (extraction conditions: sample volume, 100.0 mL; eluent solvent, 5.0 mL of HNO<sub>3</sub> (1.0 mol/L); amount of ligand, 8 mg; concentration of Cd ion, 0.10 mg/L).</table>

Journal of Chemistry

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Figure 2: Determination of Trace Amount of Cadmium by Atomic Absorption Spectrometry in Table Salt after Solid Phase Preconcentration Using Octadecyl Silica Membrane Disk Modified by a New Derivative of Pyridine 

Figure 2 | Determination of Trace Amount of Cadmium by Atomic Absorption Spectrometry in Table Salt after Solid Phase Preconcentration Using Octadecyl Silica Membrane Disk Modified by a New Derivative of Pyridine 