Table 1. EXAFS parameters for Dy and Lu species adsorbed on salmon milt and reference materials (CN, coordination number; R, interatomic distance; ΔE0, threshold E0 shift; σ, Debye-Waller factor; least squares precisions are given to each value).

Sample	k range (Å−1)	Shell	CNa	R (Å)a	ΔE0 (eV)	σ2 (x103 Å2)a , b	Residual (%)
Dy on CP	2.85–8.85	Dy-O	10.2±1.1	2.329±0.020	4.8±2.1	12.1±0.2	1.6
		Dy-P	1.1±0.1	3.759±0.111		12.1±0.9
Dy on CMC	2.95–10.75	Dy-O	10.9±1.0	2.383±0.020	3.2±2.5	12.1±0.2	0.9
		Dy-C	2.7±0.1	3.401±0.19		5.3±0.9
Dy on Ln resin	2.80–10.35	Dy-O	9.6±2.1	2.249±0.016	3.9±2.0	7.6±0.8	1.4
		Dy-P	7.2±0.1	3.762±0.104		13.7*
Dy on DNA-filter hybrid, pH 3	2.66–9.38	Dy-O	11.9±2.8	2.343±0.020	2.7±2.1	12.1	0.8
		Dy-P	1.2±0.2	3.742±0.027		12.1*
Dy on salmon milt, pH 3	2.75–9.45	Dy-O	10.5±1.1	2.308±0.019	2.2±2.0	11.0	1.0
		Dy-P	2.1±0.1	3.795±0.027		6.7±0.9
Lu on CP	2.75–10.2	Lu-O	9.8±2.3	2.284±0.019	6.8±2.1	12.1±0.8	3.3
		Lu-P	2.3±0.1	3.812±0.050		12.1*
Lu on CMC	2.80–10.35	Lu-O	10.1±2.3	2.298±0.019	6.3±2.1	10.8±0.8	1.3
		Lu-C	3.6±0.1	3.328±0.050		4.9*
Lu on Ln resin	2.80–10.35	Lu-O	8.4±1.7	2.184±0.014	6.4±2.1	5.8±0.8	1.4
		Lu-P	5.3±0.3	3.734±0.025		9.6±0.8
Lu on DNA-filter hybrid, pH 3	2.80–10.05	Lu-O	10.5±2.1	2.270±0.017	6.0±2.0	12.3±0.6	1.1
		Lu-P	1.9±0.1	3.786±0.195		10.0±0.6
Lu on salmon milt, pH 3	2.90–10.40	Lu-O	8.2±1.7	2.203±0.015	6.7±2.1	6.7±0.8	1.1
		Lu-P	3.5±0.1	3.773±0.112		4.1

^aAccuracy in the fitted parameters were estimated to be generally ±0.02 Å for R, ±20% for CN, and 20% for σ. [2], [31].

^bThe numbers with * were fixed during the fitting of EXAFS spectra.