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CE-UV of Aβ mixture of three synthetic peptides (1-38, 1-40, 1-42) from IP performed on anti-Aβ IS (pAb): original sample (OS; sample before IP), binding fraction (BF; sample with non-IP Aβ peptides), and three successive elution fractions (E1–3; fractions with IP Aβ peptides eluted by 0.16% NH4OH). E1–3 show preferential capture of Aβ 1-42. Analytical conditions were according to Verpillot et al. (2008).
