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The ic-ELISA calibration curves for Aβ1-42 using a 1 : 1000 (v/v) dilution of alpaca antiserum were obtained using analyte standards prepared in 0.456 mg/ml precipitated urine. (c) The correlation curve of the detected and spiked concentrations of Aβ1-42 in 1 : 160 diluted urine. (d) The correlation curve of the detected and spiked concentrations of Aβ1-42 in 0.456 mg/ml precipitated urine.
