Determination of Heavy Metals and Rare Earth Elements in Bottom Ash of Waste Incineration by ICP-MS With High-Pressure Closed Digestion Method

Yilizhati JUMAHONG; Xi-juan TAN; Ting LIANG; Yi ZHOU

doi:10.3964/j.issn.1000-0593(2022)10-3168-06

Journals >Spectroscopy and Spectral Analysis >Volume 42 >Issue 10 >Page 3168 > Article

Spectroscopy and Spectral Analysis
Vol. 42, Issue 10, 3168 (2022)

Determination of Heavy Metals and Rare Earth Elements in Bottom Ash of Waste Incineration by ICP-MS With High-Pressure Closed Digestion Method

Yilizhati JUMAHONG^*, Xi-juan TAN^{1; 2; *;}, Ting LIANG^{1; 2;}, and Yi ZHOU^{1; 2;}

Author Affiliations

1. College of Earth Sciences and Land Resources, Chang'an University, Xi'an 710054, China

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DOI: 10.3964/j.issn.1000-0593(2022)10-3168-06 Cite this Article

Yilizhati JUMAHONG, Xi-juan TAN, Ting LIANG, Yi ZHOU. Determination of Heavy Metals and Rare Earth Elements in Bottom Ash of Waste Incineration by ICP-MS With High-Pressure Closed Digestion Method[J]. Spectroscopy and Spectral Analysis, 2022, 42(10): 3168 Copy Citation Text

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Fig. 1. The results of ICP-MS analysis under different nebulizer gas flow rates

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Fig. 2. Effect of sampling depth on element signal intensity of ICP-MS analysis

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仪器型号	Thermofisher Scientific Ⅰ系列X-7
RF功率/W	1 250
等离子体气^*/(L·min^-1 Ar)	14.0
辅助气^*/(L·min^-1 Ar)	0.80
雾化气^*/(L·min^-1 Ar)	0.82
雾化室温度/℃	2
检测器模式	双模式
信号采集方式	跳峰
驻留时间/ms	10
信号采集通道	3
采样深度^*/A.U.	100
采样锥/截取锥/mm	镍锥, 1.0/0.75

Table 1. Experimental operating conditions of ICP-MS

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分析元素	标准曲线 y=ax+b^*	相关系数 R²	检出限/ (ng·mL^-1)	GSR-1/(μg·g^-1)		W-2a/(μg·g^-1)
分析元素	标准曲线 y=ax+b^*	相关系数 R²	检出限/ (ng·mL^-1)	测定值	参考值	测定值	参考值
Cr	y=5 325x+5 368	0.999 968	1.01	3.41±0.05	3.6±0.9	89.5±0.7	92±4.4
Co	y=6 678x+396	0.999 970	0.059	3.06±0.21	3.4±0.7	42.7±0.01	43±2.1
Ni	y=1 228x+195	0.999 957	0.16	2.22±0.02	2.3±0.8	70.7±2.0	70±2.5
Cu	y=2 816x+227	0.999 964	0.081	3.03±0.07	3.2±0.9	108±2.0	110±4.9
Zn	y=1 437x+674	0.999 957	0.005	27.8±0.7	28±3	78.8±0.3	80±2
Zr	y=3 656x+6.67	0.999 962	0.002	167±3	167±9	103±1	100±4
Cd	y=3 309x+272	0.999 980	0.049	0.03±0.01	0.03±0.01	0.12±0.01	-
Ba	y=5 762x+233	0.999 982	0.040	326±2	343±29	175±6	170±11
Pb	y=8 084x+168	0.999 979	0.041	34.2±0.2	31±3	9.5±1.1	9.3
Sc	y=4 666x+5 548	0.999 982	0.007	6.08±0.10	6.1±0.4	36.4±0.2	36±1.1
Y	y=5 484x+15	0.999 983	0.001	59.1±0.8	62±5	22.5±0.4	23±1.6
La	y=6 835x+17.1	0.999 995	0.003	50.5±1.6	54±4	10.4±0.2	10±0.59
Ce	y=6 712x+22.6	0.999 989	0.003	104±4	108±7	24.0±0.1	23±1.5
Pr	y=8 106x+7.87	0.999 996	0.001	12.4±0.3	12.7±0.8	3.17±0.1	-
Nd	y=1 447x+1.66	0.999 990	0.001	45.9±0.3	47±4	13.5±0.4	13±1
Sm	y=1 249x+2.92	0.999 998	0.002	9.9±0.1	9.7±0.8	3.5±0.2	3.3±0.13
Eu	y=5 196x+8.34	0.999 998	0.002	0.86±0.07	0.85±0.07	1.1±0.02	1±0.06
Gd	y=1 453x+1.68	0.999 991	0.001	10±0.1	9.3±0.7	4.23±0.06	-
Tb	y=8 963x+9.57	0.999 996	0.001	1.68±0.03	1.65±0.09	0.62±0.07	0.63
Dy	y=2 163x+1.25	0.999 994	0.001	10.5±0.6	10.2±0.4	3.5±0.02	3.6±0.8
Ho	y=8 559x+7.48	0.999 980	0.001	2.16±0.02	2.05±0.17	0.73±0.01	0.76
Er	y=2 867x+2.07	0.999 987	0.001	6.3±0.1	6.5±0.3	2.72±0.02	2.50
Tm	y=8 765x+11.3	0.999 984	0.001	1.06±0.01	1.06±0.09	0.38±0.1	0.38
Yb	y=1 947x+1.24	0.999 981	0.001	7.39±0.05	7.4±0.5	2.23±0.01	2.1±0.2
	y=8 632x+9.15	0.999 990	0.002	1.16±0.02	1.15±0.09	0.37±0.01	-

Table 2. Element calibration relationship and detection limit of ICP-MS and results of standard samples

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元素	方法A						方法B
元素	T1-1	2σ	T2-1	2σ	T3-1	2σ	T1-2	2σ	T2-2	2σ	T3-2	2σ
Cr	408	4	409	1	467	2	346	5	344	1.3	401	1.1
Co	43.9	0.2	60.3	0.2	46.9	0.3	36.7	0.4	40.3	0.3	42.7	0.2
Ni	98.5	1.0	93.2	0.2	106	1	86.4	0.1	81.2	0.4	93.4	0.3
Cu	387	5	388	4	426	3	367	1	356	2	361	1
Zn	1699	7	1 791	14	1 619	1	1 608	10	1 621	1	1 487	2
Zr	323	2	323	1	331	2	304	2	307	3	309	1
Cd	7.14	0.10	7.59	0.01	7.47	0.08	6.87	0.09	7.10	0.02	7.12	0.08
Ba	1 766	7	1 842	26	1 805	10	1 631	6	1 689	12	1 699	5
Pb	1 412	27	1 265	6	1 459	8	844	0.4	810	10	975	3
Sc	11.3	0.1	12.1	0.1	10.8	0.1	11.2	0.1	11.3	0.2	10.3	0.1
Y	19.5	0.1	19.4	0.1	20.1	0.1	17.8	0.2	18.2	0.2	19.0	0.2
La	29.9	0.1	30.3	0.5	29.2	0.1	26.4	0.2	28.3	0.2	27.2	0.1
Ce	89.1	0.9	89.4	1.3	89.6	0.1	78.5	0.4	83.3	0.4	80.7	0.2
Pr	5.75	0.04	5.80	0.14	5.67	0.01	4.97	0.05	5.36	0.04	5.07	0.01
Nd	20.1	0.2	21.6	0.6	21.3	0.2	18.3	0.1	20.0	0.2	18.9	0.1
Sm	3.84	0.04	4.09	0.05	4.11	0.01	3.47	0.11	3.75	0.03	3.52	0.07
Eu	1.22	0.01	1.26	0.01	1.25	0.01	0.951	0.001	0.990	0.030	1.00	0.01
Gd	5.64	0.08	5.52	0.06	5.68	0.01	4.57	0.01	4.91	0.01	4.68	0.09
Tb	0.686	0.001	0.71	0.01	0.70	0.01	0.580	0.060	0.646	0.001	0.587	0.001
Dy	3.50	0.05	3.59	0.01	3.62	0.10	2.99	0.02	3.27	0.02	3.15	0.08
Ho	0.71	0.01	0.73	0.01	0.74	0.01	0.64	0.01	0.67	0.01	0.68	0.01
Er	2.97	0.01	3.00	0.10	3.00	0.03	2.48	0.05	2.78	0.01	2.68	0.03
Tm	0.299	0.001	0.312	0.001	0.307	0.001	0.254	0.001	0.269	0.001	0.274	0.001
Yb	2.07	0.01	2.14	0.03	2.08	0.04	1.74	0.09	1.86	0.03	1.91	0.05
Lu	0.30	0.01	0.32	0.02	0.311	0.001	0.251	0.001	0.276	0.001	0.295	0.001

Table 3. Quantification results of heavy metals and REEs in waste incineration by ICP-MS (n=3)^*

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