高能偏振能量色散X射线荧光光谱仪特性研究及地质样品中主微量元素分析

袁静; 刘建坤; 郑荣华; 沈加林

doi:10.15898/j.cnki.11-2131/td.202001070007

高能偏振能量色散X射线荧光光谱仪特性研究及地质样品中主微量元素分析

中国地质调查局南京地质调查中心, 华东地质科技创新中心, 江苏南京 210016

基金项目:
国家重点研发计划项目“土地生态恢复评价检验检测及质量控制标准研究”（2017YFF0206804）

详细信息

作者简介: 袁静, 硕士, 工程师, 主要从事X射线荧光光谱分析方法的研究与应用。E-mail:candyyj@126.com

通讯作者: 沈加林, 硕士, 高级工程师, 主要从事分析测试、物相分析、地质矿产研究。E-mail:sjlilu@163.com

中图分类号: O657.31

收稿日期: 2020-01-07

修回日期: 2020-07-28

录用日期: 2020-09-19

Studies on Characteristics of High-energy Polarized Energy-dispersive X-ray Fluorescence Spectrometer and Determination of Major and Trace Elements in Geological Samples

Nanjing Center of Geological Survey, China Geological Survey, East China Center for Geoscience Innovation, Nanjing 210016, China

More Information

Corresponding author: Jia-lin SHEN, sjlilu@163.com

Received Date: 07 January 2020

Revised Date: 28 July 2020

Accepted Date: 19 September 2020

摘要

摘要: 高能偏振能量色散X射线荧光光谱仪由于其高能特性为包括重金属和稀土元素在内的原子序数较大的重元素分析带来了新的契机。本文应用高能偏振X射线荧光光谱仪（HE-P-EDXRF）建立了土壤、岩石和水系沉积物中主微量元素分析方法，对分析线的选择、谱线重叠干扰校正及基体校正模式等进行了探讨，并用不确定度对方法进行了评估。研究表明：①原子序数较大的微量元素选取Kα线作为分析线，谱线重叠干扰较少，有利于获得谱峰净强度，甚至La、Ce和Nd等稀土元素也能够准确测定；②合适的基体校正方法能够改善标准曲线拟合效果；③微量元素Ba和稀土元素La、Ce等，HE-P-EDXRF方法检出限具有明显优势，而对于轻元素WDXRF方法检出限更低；④检验样本除Na₂O、MgO、P和Sm外平均相对误差均在15%以下，微量元素相对平均误差在2.40%~16.3%之间，除Cu和Yb外其余微量元素准确度结果显著优于WDXRF；⑤根据欧盟和国际上不确定度的评估方法，除V和Th外，其他微量元素与有证标准物质的认定值间不存在显著性差异。综合来看，本方法更适用于分析岩石、土壤和沉积物等常规地质样品中的微量和稀土元素，解决了此类样品中微量元素对ICP-MS等需复杂化学前处理的分析方法的依赖。
- 高能偏振能量色散X射线荧光光谱法 /
- 地质样品 /
- 粉末压片 /
- 主微量元素
Abstract: BACKGROUNDThe quantification of trace elements in geological samples depends largely on the analytical methods that require complex chemical pretreatment. High-energy polarized energy-dispersive X-ray fluorescence spectrometry (HE-P-EDXRF) has a considerable advantage for the determination of trace elements with large atomic numbers, due to its high-energy properties, which can effectively excite the Kα line of heavy elements. OBJECTIVESTo establish a HE-P-EDXRF method for quantitative analysis of major and trace elements in geological samples. METHODSHE-P-EDXRF was used to establish an analysis method for major and trace elements in soil, rock and water system sediments. The selection of analysis lines, line overlap interference correction and matrix correction modes were discussed. Uncertainty was used to evaluate the method. RESULTSThe Kα line was selected as the analysis line for trace elements with a larger atomic number due to less interference from the spectral line overlap, which is beneficial to obtaining the net peak intensity. Rare earth elements such as La, Ce and Nd can be accurately measured. Detection limits of the trace element Ba and rare earth elements such as La, Ce determined by EDXRF were greater than those determined by WDXRF, but lesser for light elements. For all the major and trace elements, the average of relative error of test training data was less than 15% except for Na₂O, MgO, P and Sm. The average relative error of trace elements was between 2.40% and 16.3%. The accuracy of trace elements (except Cu and Yb) was significantly better than that of WDXRF. According to the evaluation method of the Europe Union, no significant difference existed between the trace elements results (except V and Th) and the recommended value of certified reference materials. CONCLUSIONSHE-P-EDXRF is a simple, fast and environmentally-friendly method that can simultaneously analyze multiple elements in geological samples. This method is suitable for quantification of the trace and rare earth elements in rock, soil and sediment, which overcomes the dependence of quantitative analysis of rare earth and trace elements in geological samples on the need for methods requiring complex chemical pretreatment.
- high-energy polarized energy-dispersive X-ray fluorescence spectrometry /
- geological samples /
- pressed-powder pellets /
- major and trace elements

HTML全文

图 1 (a) 标准样品GBW07302稀土元素L系线能量区间内谱线图; (b)标准样品GBW07302部分稀土元素K系线谱线图

Figure 1.

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图 2 EDXRF和WDXRF分析检出限比较

Figure 2.

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图 3 EDXRF和WDXRF平均相对误差比较

Figure 3.

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表 1 元素的HE-P-EDXRF测量条件

Table 1. Measurement conditions of elements by HE-P-EDXRF

分析元素	管压 (kV)	管流 (mA)	分析线	二次靶	测量时间(s)
Na，Mg，K，Si，Al，P，Sc，V，Cr，S，Cl	75	8	Kα(ROI)	Fe	250
Ca，Ti	75	8	Kα	Fe	250
Mn，Co，Ni，Cu，Zn	75	8	Kα(ROI)	Ge	250
Fe	75	8	Kα	Ge	250
Ga	100	6	Kα	KBr	250
Ge，As	100	6	Kα(ROI)	KBr	250
Se，Br	100	6	Kα(ROI)	Mo	250
Rb，Sr，Y	100	6	Kα	Mo	250
Zr，Nb，Ba，La，Ce，Pr，Nd	100	6	Kα	Al₂O₃	250
Hf，Ta，W，Hg，Tl，Bi，U，Th	100	6	Lα(ROI)	Mo	250
Mo，Pd，Ag，Cd，In，Sn，Sb，Te，I，Cs，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb，Lu	100	6	Kα(ROI)	Al₂O₃	250
Pb	100	6	Lβ₁	Mo	250
注：ROI(region of interest)为元素感兴趣区范围。

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表 2 谱线重叠校正和基体校正

Table 2. Correction of overlap lines and matrix effects

元素	重叠校正	基体校正
Na₂O	Zn, Zr, Cu	α校正
MgO	Al₂O₃	α校正
Al₂O₃	SiO₂	α校正
SiO₂	Al₂O₃	α校正
P	SiO₂	α校正
S	Mo, SiO₂, Cu, Zn	α校正
Cl	-	α校正
K₂O	Zr, CaO	α校正
Ca	-	α校正
Sc	CaO	α校正
Ti	Ba, Sr	α校正
V	Ti	α校正
Cr	V, Ba, Ce	α校正
Mn	Cr, W	α校正
Fe₂O₃	Mn	α校正
Co	Al₂O₃, As, Zr, Sn	α校正
Ni	Co	α校正, Ge KAC
Cu	-	α校正
Zn	Cu	α校正, Ge KAC
Ga	Zn, Bi	α校正
Ge	W, Zn, Ga	α校正
As	Pb, Bi	α校正
Se	Pb, As, Bi, Mo	α校正
Br	Pb, As	α校正
Rb	Nb, Sn, Ti	α校正
Sr	-	α校正
Y	Rb, Sr, As	α校正
Zr	Sr	α校正
Nb	Y, Th	α校正
Mo	Zr, U	α校正
Ag	Cd, Pd, Sb	α校正
Cd	Sn, Sb, Cu	α校正
In	Sn, As, Cd, Nb	α校正
Sn	Sb, Cd, Zr, As	α校正
Sb	-	α校正
Te	-	α校正
I	Sn, Sb, Ba, Cr	α校正
Cs	Te	α校正
Ba	-	α校正
La	-	α校正
Ce	Cs	α校正
Pr	Ba, Ce, Zr, Nb	α校正
Nd	Ba, Ce, Pr, Zn	α校正
Sm	Ti, Nd, Ce, As	α校正
Eu	Ti, Zr, Pr, Nd	α校正
Gd	Tb, Sm, Ba, Nd	α校正
Tb	Nb, Sm, Ce, Y	-
Dy	Sm, Y, Sn, Ce	α校正
Ho	Y, Zr, Nb, Dy	α校正
Er	Y, Ce, Ti, Gd	α校正
Tm	Y, Nb, Sn, Pr	α校正
Yb	Y, Th, Ni, Nb	α校正
Lu	Ce, Y, Nb	α校正
Hf	Ba, Nb, Zn, Zr	α校正
Ta	Ni, Cu, Nb, Sn	α校正
W	Cu, Ni, Zn, Yb	α校正
Hg	Cr, As, Zn, S	α校正
Tl	Pb, W, Ga, As	α校正
Pb	Zn	α校正, Mo KAC
Bi	Pb, As, W, Sn	α校正
Th	Rb, Pb, Bi, Zr	α校正, Mo KAC
U	Rb, Th, Zr, Br	α校正
注：Mo KAC为Mo Kα的康普顿散射线，Ge KAC为Ge Kα的康普顿散射线。

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表 3 分析元素EDXRF和WDXRF的测定值和认定值对比

Table 3. Comparison of analytical data of EDXRF and WDXRF between certified values for major and trace elements

元素	分析方法	含量(%)										平均相对误差(%)
元素	分析方法	GBW07302	GBW07304	GBW07305	GBW07306	GBW07104	GBW07105	GBW07107	GBW07402	GBW07403	GBW07405	平均相对误差(%)
	EDXRF	2.86	0.54	0.44	2.63	3.72	3.03	0.44	1.64	2.59	0.086	18.7
Na₂O	WDXRF	3.00	0.31	0.36	2.35	4.72	3.98	0.29	1.93	3.03	0.14	11.9
	认定值	3.03	0.30	0.39	2.30	3.86	3.38	0.35	1.62	2.72	0.12	-
	EDXRF	0.20	1.23	1.18	3.13	1.31	6.33	2.40	0.91	0.45	0.80	17.7
MgO	WDXRF	0.24	1.06	0.98	2.89	1.40	5.78	1.90	1.04	0.63	0.70	9.63
	认定值	0.21	1.02	0.98	3.00	1.72	7.77	2.01	1.04	0.58	0.61	-
	EDXRF	16.5	18.0	16.5	13.5	14.6	13.0	18.7	10.5	12.2	22.0	5.22
Al₂O₃	WDXRF	16.4	16.2	16.0	13.6	14.0	12.4	17.7	10.4	12.0	22.1	5.11
	认定值	15.7	15.7	15.4	14.2	16.2	13.8	18.8	10.3	12.2	21.6	-
	EDXRF	70.5	56.4	57.9	60.6	59.3	44.2	61.3	71.9	75.3	49.6	2.68
SiO₂	WDXRF	68.4	55.9	57.4	59.9	53.1	44.4	60.6	69.9	70.7	49.9	4.29
	认定值	69.9	52.6	56.4	61.2	60.6	44.6	59.2	73.4	74.7	52.6	-
	EDXRF	1.95	6.61	6.45	5.93	4.87	12.0	7.75	3.39	2.06	12.6	4.52
Fe₂O₃	WDXRF	1.75	6.34	6.15	5.73	4.43	12.8	7.15	3.33	1.89	11.7	6.14
	认定值	1.90	5.91	5.84	5.88	4.90	13.4	7.60	3.52	2.00	12.6	-
	EDXRF	5.16	2.28	2.12	2.44	1.65	2.11	4.27	2.42	2.99	1.47	3.67
K₂O	WDXRF	4.82	2.19	2.05	2.29	1.56	2.08	3.87	2.35	2.82	1.44	7.08
	认定值	5.20	2.23	2.11	2.43	1.89	2.32	4.16	2.54	3.04	1.50	-
	EDXRF	0.32	7.84	5.65	3.80	4.88	8.28	0.71	2.28	1.31	0.17	14.6
CaO	WDXRF	0.21	7.59	5.51	3.67	4.54	8.21	0.61	2.16	1.17	0.074	9.13
	认定值	0.25	7.54	5.34	3.87	5.20	8.81	0.60	2.36	1.27	0.10	-
	EDXRF	236	850	1234	966	624	1237	203	495	303	1371	4.17
Mn	WDXRF	264	858	1213	959	587	1265	142	498	308	1267	5.42
	认定值	240	825	1160	970	604	1310	173	510	304	1360	-
	EDXRF	564	408	470	950	1014	4037	583	442	450	384	29.0
P	WDXRF	161	427	604	993	913	4239	604	432	344	370	7.8
	认定值	200	470	630	1020	1030	4130	690	446	320	390	-
	EDXRF	7.50	41.8	34.5	74.4	16.8	139	37.9	18.4	12.1	43.5	6.62
Ni	WDXRF	8.20	41.2	37.2	82.5	12.2	132	41.8	18.7	12.3	44.2	13.1
	认定值	5.5	40.0	34	78	17	140	37	19.4	12	40	-
	EDXRF	8.6	38.3	143	393	57.6	44.5	43.7	19.5	11.0	137	13.1
Cu	WDXRF	2.5	41.7	150	400	49.0	53.0	47.6	17.7	10.0	143	12.9
	认定值	4.9	37.0	137	383	55.0	49.0	42.0	16.3	11.4	144	-
	EDXRF	44.2	106	259	155	66.9	140	57.1	40.4	31.8	505	4.49
Zn	WDXRF	43.2	98.7	243	153	65.0	132	65.6	45.3	36.1	532	8.23
	认定值	44	101	243	144	71.0	150	55.0	42.0	31.0	494	-
	EDXRF	5.62	21.1	82.3	11.6	1.58	0.51	1.76	14.9	4.46	412	12.8
As	WDXRF	4.40	19.4	80.7	11.8	3.30	0.50	0	10.4	5.40	458	29.5
	认定值	6.20	19.7	75.0	13.6	2.10	0.70	1.40	13.7	4.40	412	-
	EDXRF	480	129	118	110	39.7	37.2	212	86.6	89.9	115	2.40
Rb	WDXRF	456	134	124	114	35.6	39.7	211	89.7	91.8	119	4.52
	认定值	470	130	118	107	38.0	37.0	205	88.0	85.0	117	-
	EDXRF	32.4	140	199	264	782	1100	94.0	183	378	45.1	3.60
Sr	WDXRF	30.9	145	205	273	715	1163	97.7	181	377	48.9	5.98
	认定值	28.0	142	204	266	790	1100	90.0	187	380	42.0	-
	EDXRF	443	193	223	173	89.5	282	108	228	244	271	3.94
Zr	WDXRF	421	201	233	180	91.4	297	109	209	261	269	6.70
	认定值	460	188	220	170	99	277	96	219	246	272	-
	EDXRF	189	474	463	323	1061	502	436	912	1238	279	3.22
Ba	WDXRF	180	452	433	311	942	477	431	870	1183	298	4.47
	认定值	185	470	440	330	1020	527	450	930	1210	296	-
	EDXRF	94.2	38.1	42.4	37.0	19.6	54.9	60.4	163	17.9	32.9	6.20
La	WDXRF	73.3	52.3	34.3	16.5	23.6	51.0	59.2	131	24.4	51.9	23.4
	认定值	90	40	46	39	22	56	62	164	21	36	-
	EDXRF	196	79.9	90.5	67.7	40.2	96.8	106	398	39.5	81.9	3.02
Ce	WDXRF	170	77.7	87.7	82.6	57.7	76.9	92.1	399	56.1	100	17.6
	认定值	192	78	89	68	40	105	109	402	39	91	-
	EDXRF	63.7	33.3	38.2	31.8	20.1	50.8	48.5	209	19.1	21.2	4.75
Nd	WDXRF	48.1	34.1	41.8	29.3	23.1	54.5	41.2	177	23.4	27.0	15.2
	认定值	62	32	35	33	19	54	48	210	18.4	24	-
	EDXRF	9.67	4.84	5.90	5.81	4.43	8.18	5.68	19.0	4.05	4.21	16.3
Sm	WDXRF	7.70	6.10	5.80	5.00	5.00	7.50	6.80	18.5	4.60	6.40	24.8
	认定值	10.8	6.2	6.6	5.6	3.4	10.2	8.4	18	3.3	4	-
	EDXRF	9.63	2.88	2.92	2.18	0.84	2.24	3.00	2.33	1.58	2.30	12.9
Yb	WDXRF	7.40	2.90	3.00	2.20	0.80	2.00	3.20	2.20	1.60	2.70	12.7
	认定值	11	2.9	2.9	2.1	0.89	1.50	2.6	2	1.7	2.8	-
	EDXRF	18.2	5.1	6.32	5.11	2.57	7.67	3.04	7.03	6.81	7.43	9.39
Hf	WDXRF	13.7	4.8	6.10	5.00	4.90	6.00	2.90	6.20	8.30	6.10	18.4
	认定值	20	5.8	6.5	4.9	2.96	6.5	2.9	5.8	6.8	8.1	-
	EDXRF	39.8	30.2	117	31.4	9.95	4.35	8.9	20.3	25.9	550	10.0
Pb	WDXRF	47.3	38.9	123	28.8	10.1	1.50	7.6	21.1	22.6	527	21.9
	认定值	32	30	112	27	11.3	7.00	8.7	20	26	552	-

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表 4 有证标准物质测量值和认定值的绝对差(Δm)与测量值和认定值之间的扩展不确定度(U_Δ)比较

Table 4. Comparison of the absolute differences between mean measured values and certified values (Δm) and the expanded uncertainty of differences between results and certified values (U_Δ)

标准物质编号	参数	Na₂O	MgO	Al₂O₃	SiO₂	P	K₂O	CaO	Ti	Mn	Fe₂O₃	V
GBW07301	Δm	0.22	0.52	2.62	0.31	25.3	0.13	0.32	563	61.3	0.53	12.8
GBW07301	U_Δ	1.45	0.62	0.41	0.57	379	0.12	0.15	419	80.8	0.19	16.8
GBW07305	Δm	0.08	0.27	2.35	2.24	79.4	0.086	0.28	355	62.1	0.55	26.6
GBW07305	U_Δ	0.42	0.31	0.38	0.64	218	0.14	0.21	321	89.0	0.20	12.7
GBW07307	Δm	0.45	0.15	0.78	2.29	168	0.029	0.0030	46.5	4.79	0.39	5.25
GBW07307	U_Δ	3.77	1.99	1.07	1.03	524	0.17	0.10	331	71.4	0.20	12.1
GBW07105	Δm	0.21	2.42	1.54	0.84	131	0.10	0.61	1158	66.3	0.20	42.5
GBW07105	U_Δ	1.45	1.76	1.19	0.58	445	0.12	0.18	926	129	0.45	22.2
GBW07108	Δm	4.98	0.015	3.52	2.20	156	0.020	0.88	88.4	29.7	0.47	15.5
GBW07108	U_Δ	1.74	0.613	0.27	0.71	401	0.080	0.53	181	54.1	0.15	15.9
GBW07403	Δm	0.47	0.21	0.32	2.03	251	0.010	0.014	115	8.84	0.038	37.1
GBW07403	U_Δ	3.33	1.19	1.39	1.00	302	0.11	0.10	179	48.0	0.10	9.73
GBW07405	Δm	0.17	0.26	0.58	0.71	27.0	0.016	0.15	108	56.3	1.26	84.8
GBW07405	U_Δ	1.56	0.68	1.84	0.35	70.5	0.080	0.0029	475	143	0.39	22.5
GBW07406	Δm	0.90	0.26	0.58	1.84	86.8	0.11	0.050	137	207	0.57	44.9
GBW07406	U_Δ	2.78	1.63	1.35	1.42	70.1	0.12	0.061	337	169	0.37	17.2

标准物质编号	参数	Cr	Ni	Cu	Zn	Ga	As	Rb	Sr	Y	Zr	Nb
GBW07301	Δm	0.25	7.02	2.81	8.39	0.14	1.84	5.45	16.3	0.48	13.3	1.39
GBW07301	U_Δ	20.1	17.7	4.00	14.0	2.30	1.48	12.1	82.2	6.03	47.8	7.46
GBW07305	Δm	12.3	4.38	7.66	19.89	1.40	1.29	7.82	8.36	1.95	7.23	0.70
GBW07305	U_Δ	12.2	6.39	14.8	30.5	2.56	16.0	12.2	24.2	6.01	23.3	6.62
GBW07307	Δm	0.019	4.25	0.50	8.92	0.35	2.60	1.40	0.09	1.09	7.60	0.69
GBW07307	U_Δ	15.6	8.17	4.94	24.8	3.78	12.2	16.3	30.0	4.36	18.4	4.20
GBW07105	Δm	22.5	1.84	6.31	18.00	1.62	0.27	1.98	0.61	2.59	23.5	3.41
GBW07105	U_Δ	22.9	16.0	6.94	23.0	5.98	0.41	8.91	128	8.06	40.0	16.3
GBW07108	Δm	26.7	101	8.76	2.93	6.13	0.27	0.44	22.70	0.64	5.78	0.30
GBW07108	U_Δ	12.0	6.78	5.78	8.40	3.66	1.39	8.06	108	3.30	27.6	4.36
GBW07403	Δm	1.96	1.41	1.16	2.12	3.06	0.23	4.65	2.79	0.13	9.94	0.85
GBW07403	U_Δ	9.69	4.04	2.49	6.19	2.03	1.98	8.05	32.3	4.00	28.2	3.03
GBW07405	Δm	11.4	18.3	6.21	16.7	2.25	22.2	0.66	1.74	1.38	5.44	0.21
GBW07405	U_Δ	15.7	8.12	14.6	50.1	10.9	32.2	12.7	8.03	6.08	32.0	6.79
GBW07406	Δm	9.70	1.12	21.2	4.93	1.54	8.42	4.18	0.68	1.35	6.07	0.28
GBW07406	U_Δ	12.6	8.30	30.1	12.1	6.23	28.4	16.8	8.03	4.17	28.5	7.35

标准物质编号	参数	Cd	Sn	Ba	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb
GBW07301	Δm	0.064	0.75	2.17	2.98	2.13	1.04	0.25	0.30	0.095	0.0030	0.12
GBW07301	U_Δ	0.93	2.63	132	15.9	17.1	3.24	11.3	1.07	0.41	4.30	0.27
GBW07305	Δm	0.19	1.80	18.04	1.50	4.99	0.56	0.40	0.0077	0.041	1.07	0.024
GBW07305	U_Δ	1.34	1.86	60.9	12.0	14.6	2.62	10.2	1.64	0.68	4.05	0.48
GBW07307	Δm	0.056	4.14	9.20	0.85	2.75	0.064	1.24	0.83	0.26	0.091	0.078
GBW07307	U_Δ	1.32	4.11	90.1	10.4	12.8	3.03	12.8	1.28	0.54	3.06	0.33
GBW07105	Δm	0.23	1.72	2.63	1.87	2.59	2.02	4.96	0.89	0.30	0.34	0.31
GBW07105	U_Δ	3.14	2.98	52.5	11.5	17.3	3.16	8.01	1.18	0.62	1.20	0.41
GBW07108	Δm	0.72	0.14	405	2.41	3.41	0.23	1.44	0.054	0.11	0.080	0.020
GBW07108	U_Δ	0.24	1.58	52.1	10.1	6.19	0.81	3.80	0.72	0.25	1.57	0.21
GBW07403	Δm	0.37	2.15	18.9	3.78	3.98	0.091	3.94	0.29	0.015	0.72	0.0047
GBW07403	U_Δ	0.69	2.14	130	6.83	8.63	0.88	4.73	0.57	0.28	1.24	0.29
GBW07405	Δm	0.063	0.32	3.08	3.97	7.28	1.54	2.85	0.49	0.88	0.64	0.12
GBW07405	U_Δ	1.15	6.92	52.2	9.46	21.0	2.82	6.94	1.62	0.96	3.24	0.29
GBW07406	Δm	0.48	8.72	7.86	1.16	2.44	1.44	0.13	0.25	0.31	0.28	0.085
GBW07406	U_Δ	1.71	14.6	28.3	4.31	13.5	1.92	8.31	1.60	0.43	1.23	0.22
GBW07301	Δm	0.36	0.064	0.093	0.032	0.13	0.012	1.92	0.60	3.26
GBW07301	U_Δ	1.30	0.15	0.61	0.160	0.60	0.240	6.02	6.22	4.47
GBW07305	Δm	0.13	0.036	0.031	0.016	0.10	0.016	0.092	9.45	3.90
GBW07305	U_Δ	1.54	0.30	1.00	0.140	0.62	0.120	3.82	18.5	2.73
GBW07307	Δm	0.28	0.095	0.15	0.053	0.10	0.027	0.54	0.12	4.99
GBW07307	U_Δ	1.34	0.40	0.63	0.240	0.63	0.160	2.80	34.1	2.84
GBW07105	Δm	0.71	0.037	0.12	0.037	0.34	0.25	0.95	3.03	4.58
GBW07105	U_Δ	0.70	0.097	0.43	0.082	0.80	0.12	1.60	1.38	2.31
GBW07108	Δm	0.10	0.0043	0.097	0.041	0.097	0.0023	0.19	2.66	7.74
GBW07108	U_Δ	0.52	0.10	0.40	0.080	0.23	0.084	0.65	7.79	1.18
GBW07403	Δm	0.16	0.046	0.084	0.011	0.050	0.039	0.088	1.77	0.43
GBW07403	U_Δ	0.82	0.12	0.61	0.110	0.41	0.046	1.60	6.19	1.59
GBW07405	Δm	0.97	0.18	0.30	0.058	0.37	0.018	0.54	17.1	33.2
GBW07405	U_Δ	1.31	0.16	0.65	0.081	0.81	0.100	3.41	61.0	4.08
GBW07406	Δm	0.72	0.13	0.13	0.050	0.33	0.027	0.15	4.63	9.44
GBW07406	U_Δ	0.98	0.12	0.61	0.130	0.82	0.100	1.64	26.8	5.58

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