Journal of Analytical Methods in Chemistry / 2017 / Article / Tab 3

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 3

Measurement results of K, Ca, Na, and Mg in real salt mines by LCGD-AES, ICP, and IC.

SampleElementThis work (mg g−1)ICP (mg g−1)IC (mg g−1) (%)

AK599.08 ± 16.55479.20 ± 8.23107.86
Ca0.28 ± 0.040.23 ± 0.050.31 ± 0.0184.05
Na5.34 ± 1.043.25 ± 0.0390.63
Mg2.34 ± 0.302.66 ± 0.032.13 ± 0.05106.92

BK577.93 ± 10.56466.08 ± 5.14115.94
Ca0.33 ± 0.030.84 ± 0.050.37 ± 0.0187.16
Na4.55 ± 1.103.60 ± 0.0598.76
Mg2.97 ± 0.133.14 ± 0.052.84 ± 0.03103.04

CK641.35 ± 21.78488.18 ± 8.56112.69
Ca0.32 ± 0.010.31 ± 0.010.37 ± 0.0188.37
Na5.06 ± 1.124.79 ± 0.0591.83
Mg2.71 ± 0.203.62 ± 0.073.53 ± 0.05104.02

DK641.52 ± 10.42485.82 ± 6.42109.19
Ca0.25 ± 0.040.30 ± 0.030.28 ± 0.0194.03
Na5.22 ± 1.134.24 ± 0.0594.63
Mg3.33 ± 0.284.50 ± 0.054.03 ± 0.03106.32

standard concentration: 5 mg L−1, = 10.

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