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Comparison of the linearity and stability of ILISA with ELISA. (a) and (c) show the quantification of purified human IgA using sandwich ILISA (a) and sandwich ELISA (c) respectively. (b) and (d) are magnified views of the boxed portions of the curves outlined in (a) and (c) respectively. (e) shows the representative images of the micro-wells used in ILISA and ELISA. Images were taken after 15 min or 75 min incubation.
