Determinations of Zr, Hf and Nb Contents in Soil Samples by Laser-Induced Breakdown Spectroscopy (LIBS)

Peng-peng ZHANG; Jin-li XU; Meng-ying HU; Ling-huo ZHANG; Jin-feng BAI; Qin ZHANG

doi:10.3964/j.issn.1000-0593(2022)07-2163-06

Journals >Spectroscopy and Spectral Analysis >Volume 42 >Issue 7 >Page 2163 > Article

Spectroscopy and Spectral Analysis
Vol. 42, Issue 7, 2163 (2022)

Determinations of Zr, Hf and Nb Contents in Soil Samples by Laser-Induced Breakdown Spectroscopy (LIBS)

Peng-peng ZHANG^*, Jin-li XU^{1; 2; *;}, Meng-ying HU^{1; 2;}, Ling-huo ZHANG^{1; 2;}, Jin-feng BAI^{1; 2;}, and Qin ZHANG^{1; 2; *;}

Author Affiliations

1. Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China

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DOI: 10.3964/j.issn.1000-0593(2022)07-2163-06 Cite this Article

Peng-peng ZHANG, Jin-li XU, Meng-ying HU, Ling-huo ZHANG, Jin-feng BAI, Qin ZHANG. Determinations of Zr, Hf and Nb Contents in Soil Samples by Laser-Induced Breakdown Spectroscopy (LIBS)[J]. Spectroscopy and Spectral Analysis, 2022, 42(7): 2163 Copy Citation Text

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Fig. 1. The effects of static mode and dynamic mode on accuracies of measurement each sample

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Fig. 2. The effect of laser energy on the accuracy

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Fig. 3. The effect of pressure on precision of measurement

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Fig. 4. The effect of delay time on the accuracy

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Fig. 5. The effect of spot size on the accuracy for each sample

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编号	GBW07447(GSS18)			GBW07450(GSS21)			GBW07453(GSS24)
编号	Zr	Hf	Nb	Zr	Hf	Nb	Zr	Hf	Nb
1	199	5.62	12.00	184	5.27	11.2	331	10.27	18.50
2	178	4.82	11.33	190	5.50	11.4	340	10.60	19.03
3	190	5.28	11.67	184	5.38	11.2	331	10.24	18.64
4	199	5.64	12.25	193	5.77	11.5	332	10.23	18.76
5	204	5.80	13.54	200	6.03	11.8	335	10.35	18.96
6	178	4.85	11.52	204	6.19	12.0	325	9.97	18.53
7	197	5.60	12.21	218	6.71	12.8	334	10.32	18.97
8	194	5.46	12.06	200	6.13	11.8	333	10.35	18.74
9	187	5.22	11.74	218	6.87	12.7	331	10.22	18.91
10	187	5.20	11.85	228	7.27	13.3	336	10.45	18.99
平均值/(μg·g^-1)	191	5.35	11.92	202	6.11	11.98	333	10.30	18.81
标准值/(μg·g^-1)	204	5.8	12.60	190	5.50	11.40	342	10.60	19.20
RSD/%	4.63	6.30	3.08	7.52	10.96	6.07	1.20	1.59	1.06

Table 1. Precision of the method

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标准物质	Zr/(μg·g^-1)			Hf/(μg·g^-1)			Nb/(μg·g^-1)
标准物质	测定值	标准值	RE/%	测定值	标准值	RE/%	测定值	标准值	RE/%
GSS7	327	318	-2.83	7.2	7.7	6.49	67	64	-4.69
GSS8	251	229	-9.61	7.6	7.0	-8.57	16	15	-6.67
GSS18	200	204	1.96	5.7	5.8	1.72	12.3	12.6	2.38
GSS20	158	153	-3.27	4.4	4.3	-2.33	9.1	8.4	-8.33
GSS21	191	190	-0.53	5.4	5.5	1.82	11.2	11.4	1.75
GSS22	271	255	-6.27	7.8	7.2	-8.33	16.1	15.4	-4.55
GSS24	337	342	1.46	10.4	10.6	1.89	18.9	19.2	1.56
GSS25	280	254	-10.24	7.4	7.0	-5.71	15.1	14.2	-6.34
GSS34	199	180	-10.56	5.2	5.0	-4.00	15.5	14.3	-8.39

Table 2. Accuracy test of the method

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