Journal of Analytical Methods in Chemistry / 2017 / Article / Tab 1

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

Table 1

Analytical performance of LCGD-AES for K, Ca, Na, and Mg solution.

AnalyteAnalytical line (nm)Power (W)Calibration equationSensitivityLOD (mg L−1) (%)

K766.540.3–46.8 = 21821 + 2339310.99812339310.3900.26
Ca422.741.6–46.2 = 4236 + 812560.9973812560.0546.83
Na589.039.3–44.2 = 3182790 + 14736200.982214736200.0480.28
Mg285.240.3–46.8 = 589022 + 18463800.991818463800.0322.83

Standard concentration: 5 mg L−1, n = 10.

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