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. 2020 Dec 29;176:112920. doi: 10.1016/j.bios.2020.112920

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Fig. 4 — The performances of quantitative detection by using two-step RF-ELISA. The quantitative detection of the model antibody by using (A) our two-step RF-ELISA; (B) conventional static ELISA adopted by FAH-SYSU. Upper: the images of the selected sites, below: corresponding concentration-dependent gray level. Insets: the linear regions of these two methods. (C) The linear correlation between the results of the serological detections taken from two-step RF-ELISA and conventional static ELISA adopted by FAH-SYSU, respectively.