Investigation of Lithium Analysis in Geothermal Water by Inductively Coupled Plasma Optical Emission Spectrometry

Chen-ling ZHANG; Na JIA; Jia LIU; Bing-bing LIU; Mei HAN

doi:10.3964/j.issn.1000-0593(2021)12-3876-05

Journals >Spectroscopy and Spectral Analysis >Volume 41 >Issue 12 >Page 3876 > Article

Spectroscopy and Spectral Analysis
Vol. 41, Issue 12, 3876 (2021)

Investigation of Lithium Analysis in Geothermal Water by Inductively Coupled Plasma Optical Emission Spectrometry

Chen-ling ZHANG^*, Na JIA^*;, Jia LIU, Bing-bing LIU, and Mei HAN

Author Affiliations

Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Key Laboratory of Groundwater Sciences and Engineering, Ministry of Nature Resources, Shijiazhuang 050061, China

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DOI: 10.3964/j.issn.1000-0593(2021)12-3876-05 Cite this Article

Chen-ling ZHANG, Na JIA, Jia LIU, Bing-bing LIU, Mei HAN. Investigation of Lithium Analysis in Geothermal Water by Inductively Coupled Plasma Optical Emission Spectrometry[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3876 Copy Citation Text

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Fig. 1. Effects of co-existing ions on lithium determination

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Fig. 2. Influence of atomizer flow

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Fig. 3. Influence of Na⁺ addition on radial determination

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Fig. 4. Influence of Na⁺ addition on axial determination

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浓度	1^#	2^#	3^#
Na⁺/(mg·L^-1)	516.4	968.0	1 778
K⁺/(mg·L^-1)	19.06	53.37	124.65
Ca²⁺/(mg·L^-1)	84.30	643.9	558.4
Mg²⁺/(mg·L^-1)	24.17	24.44	46.03

Table 1. Composition of geothermal water samples

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观测方式	部分基体匹配		无基体匹配
观测方式	仪器检出限/ (μg·L^-1)	测定下限/ (μg·L^-1)	仪器检出限/ (μg·L^-1)	测定下限/ (μg·L^-1)
轴向	0.20	0.68	0.11	0.38
径向	0.41	1.36	0.39	1.30

Table 2. Determination limits

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样品	1^#		2^#		3^#
样品	轴向/ (mg·L^-1)	径向/ (mg·L^-1)	轴向/ (mg·L^-1)	径向/ (mg·L^-1)	轴向/ (mg·L^-1)	径向/ (mg·L^-1)
原样浓度	0.412	0.411	1.995	1.999	1.071	1.096
稀释1倍样品浓度	0.204	0.204	1.012	0.987	0.542	0.537
稀释试验系数	101.0	100.7	98.6	101.3	98.8	102.0

Table 3. Dilution test

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序号	测试方法	本底值/(mg·L^-1)	加标量/(mg·L^-1)	检测量/(mg·L^-1)	回收率/%
	ICP-OES轴向	0.412±0.005		0.928±0.007	103.2
1^#	ICP-OES径向	0.411±0.004	0.500	0.939±0.021	105.6
	ICP-MS	0.397±0.005		0.895±0.014	99.6
	ICP-OES轴向	1.995±0.013		3.950±0.004	97.8
2^#	ICP-OES径向	1.999±0.010	2.000	3.929±0.053	96.5
	ICP-MS	1.896±0.018		3.910±0.048	100.7
	ICP-OES轴向	1.071±0.004		2.041±0.014	97.0
3^#	ICP-OES径向	1.096±0.011	1.000	2.063±0.013	96.7
	ICP-MS	1.035±0.012		2.018±0.020	98.3

Table 4. Analyte addition test of real samples

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