Determination of Rare Earth Elements in Imported Copper Concentrate by Inductively Coupled Plasma Mass Spectrometry With High Matrix Injection System

Bin WANG; Shao-feng ZHENG; Wei-cai LI; Kang-hua ZHONG; Jiu-lin GAN; Zhong-min YANG; Wu-yuan SONG

doi:10.3964/j.issn.1000-0593(2022)06-1822-05

Journals >Spectroscopy and Spectral Analysis >Volume 42 >Issue 6 >Page 1822 > Article

Spectroscopy and Spectral Analysis
Vol. 42, Issue 6, 1822 (2022)

Determination of Rare Earth Elements in Imported Copper Concentrate by Inductively Coupled Plasma Mass Spectrometry With High Matrix Injection System

Bin WANG^{1、1; 2;}, Shao-feng ZHENG^2、2;, Wei-cai LI^2、2;, Kang-hua ZHONG^2、2;, Jiu-lin GAN^1、1;, Zhong-min YANG^1、1;, and Wu-yuan SONG^{3、3; *;}

Author Affiliations

¹1. State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, China

²2. State Key Testing Laboratory of Consumer Products, Huangpu Customs Technology Center, Dongguan 523070, China

³3. Guangzhou Customs District Technology Center, Guangzhou 510623, China

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DOI: 10.3964/j.issn.1000-0593(2022)06-1822-05 Cite this Article

Bin WANG, Shao-feng ZHENG, Wei-cai LI, Kang-hua ZHONG, Jiu-lin GAN, Zhong-min YANG, Wu-yuan SONG. Determination of Rare Earth Elements in Imported Copper Concentrate by Inductively Coupled Plasma Mass Spectrometry With High Matrix Injection System[J]. Spectroscopy and Spectral Analysis, 2022, 42(6): 1822 Copy Citation Text

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Fig. 1. The fitting curves
(a): La; (b): Eu

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Fig. 2. Influence of the amount of Hydrofluoric acid on the effect

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Fig. 3. Determination results
(a): GBW07105; (b): GBW07234

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浓度/ (μg·L^-1)	La		Eu
浓度/ (μg·L^-1)	强度(普通模式) /CPS	强度 (HMIs) /CPS	强度(普通模式) /CPS	强度 (HMIs) /CPS
0	142	76	58	31
5	25 131	13 040	20 981	11 084
10	48 131	26 024	40 660	21 575
25	105 228	62 628	98 347	52 236
50	199 843	117 676	178 384	98 627
100	368 915	223 061	338 759	186 521
200	675 916	469 414	602 837	393 496

Table 1. Intensity of La and Eu at each concentration

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元素	线性回归方程	相关系数	检出限/ (μg·L^-1)
Y	Y=46.666 7+767.984 6X	0.999 5	0.013 0
La	Y=75.556 7+2 327.407 4X	0.999 4	0.038 5
Ce	Y=322.230 0+3 178.348 5X	0.999 5	0.011 9
Pr	Y=67.780 0+2 898.777 2X	0.999 5	0.010 5
Nd	Y=24.443 3+566.801 1X	0.999 4	0.072 5
Sm	Y=10.000 0+484.723 4X	0.999 5	0.054 6
Eu	Y=31.110 0+1 950.188 7X	0.999 4	0.018 0
Gd	Y=22.220 0+1 099.016 6X	0.999 5	0.022 8
Tb	Y=98.890 0+5 707.955 8X	0.999 4	0.008 1
Dy	Y=30.003 3+1 292.468 7X	0.999 5	0.013 4
Ho	Y=103.336 7+5 543.168 2X	0.999 5	0.021 3
Er	Y=36.666 7+1 969.866 3X	0.999 6	0.010 1
Tm	Y=105.556 7+6 527.218 6X	0.999 5	0.010 2
Yb	Y=41.110 0+1 536.956 4X	0.999 6	0.042 3
Lu	Y=48.890 0+2 900.869 4X	0.999 4	0.010 6

Table 2. Linear regression equation and detection limit

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元素	计算值/ (μg·L^-1)	测定值/ (μg·L^-1)	回收率/ %	精密度/ %
Y	88.85	90.45	101.8	2.7
La	72.82	74.74	102.5	1.8
Ce	84.41	86.97	103.0	2.3
Pr	55.54	56.14	101.1	2.1
Nd	73.26	75.01	102.4	2.0
Sm	55.31	55.14	99.7	2.5
Eu	51.91	50.97	98.2	2.7
Gd	56.82	56.16	98.8	2.7
Tb	50.73	50.48	99.5	2.4
Dy	56.10	55.24	98.5	3.1
Ho	51.29	50.37	98.2	2.4
Er	53.74	53.29	99.2	2.6
Tm	50.51	49.92	98.8	3.0
Yb	53.17	51.77	97.4	2.5
Lu	50.16	49.15	98.0	2.8

Table 3. Result of recovery and precision

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