An EDXRF Quantitative Algorithm Based on Fundamental Parameters and Spectrum Unfolding

Ming-bo LIU; Xue-liang LIAO; Da-wei CHENG; Zi-yue NI; Hai-zhou WANG

doi:10.3964/j.issn.1000-0593(2021)09-2807-05

Journals >Spectroscopy and Spectral Analysis >Volume 41 >Issue 9 >Page 2807 > Article

Spectroscopy and Spectral Analysis
Vol. 41, Issue 9, 2807 (2021)

An EDXRF Quantitative Algorithm Based on Fundamental Parameters and Spectrum Unfolding

Ming-bo LIU^1、*, Xue-liang LIAO^2、2;, Da-wei CHENG^{1、1; 2;}, Zi-yue NI^{1、1; 2;}, and Hai-zhou WANG^{1、1; 2; *;}

Author Affiliations

¹1. Central Iron and Steel Research Institute, Beijing 100081, China

²2. NCS Testing Technology Co., Ltd., Beijing 100081, China

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DOI: 10.3964/j.issn.1000-0593(2021)09-2807-05 Cite this Article

Ming-bo LIU, Xue-liang LIAO, Da-wei CHENG, Zi-yue NI, Hai-zhou WANG. An EDXRF Quantitative Algorithm Based on Fundamental Parameters and Spectrum Unfolding[J]. Spectroscopy and Spectral Analysis, 2021, 41(9): 2807 Copy Citation Text

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Fig. 1. Comparation of origin spectrum and optimized by pure spectrums

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Fig. 2. Flowchart of algorithm

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Fig. 3. Comparation of pure spectrum and its updated

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Fig. 4. Comparation of origin spectrum and optimized by updated pure spectrums

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样品名称		La/%	Ce/%	Pr/%	Nd/%
	标称值	15.33	53.82	15.07	15.78
STD	实测值	15.62	54.13	14.93	15.32
	偏差	0.29	0.31	-0.14	-0.46
	标称值			26.22	73.78
PN	实测值			26.65	73.35
	偏差			0.43	-0.43
	标称值		89.27	6.03	4.70
CPN	实测值		89.62	5.82	4.56
	偏差		0.35	-0.21	-0.14
	标称值	39.72	56.23	2.03	2.02
LCPN1	实测值	40.30	56.12	1.90	1.68
	偏差	0.58	-0.11	-0.13	-0.34
	标称值	17.32	60.17	5.98	16.53
LCPN2	实测值	17.17	59.38	6.24	17.21
	偏差	-0.15	-0.79	0.26	0.68
	标称值	83.37	14.29	0.83	1.51
LCPN3	实测值	83.83	14.39	0.51	1.27
	偏差	0.46	0.10	-0.32	-0.24
	标称值	29.83	51.28	4.58	14.31
LCPN4	实测值	29.41	51.27	5.19	14.13
	偏差	-0.42	-0.01	0.61	-0.18

Table 1. Tested results and certified

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元素名称	La/%	Ce/%	Pr/%	Nd/%
1	15.47	53.09	15.36	16.08
2	15.81	53.23	15.17	15.79
3	15.44	53.41	15.38	15.77
4	15.47	53.62	15.21	15.71
5	15.43	53.39	15.09	16.08
6	15.61	53.29	15.37	15.72
7	15.71	53.49	15.01	15.79
8	15.62	53.40	15.01	15.95
9	15.59	53.29	15.19	15.94
10	15.75	53.39	15.23	15.63
11	15.48	53.40	15.29	15.83
标称值	15.33	53.82	15.07	15.78
相对标准偏差RSD/%	0.86	0.26	0.88	0.95
极差	0.38	0.53	0.37	0.46
最大偏差	0.48	0.73	0.31	0.30

Table 2. Tested results of stability

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