Journal of Analytical Methods in Chemistry / 2017 / Article / Fig 7

Research Article

High-Sensitivity Determination of K, Ca, Na, and Mg in Salt Mines Samples by Atomic Emission Spectrometry with a Miniaturized Liquid Cathode Glow Discharge

Figure 7

The effect of the solution pH on emission intensity (electrolytes: 5 mg L−1 K, Ca, Na, and Mg solution, discharge voltage: 650 V, flow rate: 3 mL min−1, interelectrode gap: 2 mm, and capillary diameter: 1 mm).

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