. The precision of measurement depends on leptin concentration, and is between 9.1% and 2.2%. Recoveries of the leptin spike are between 97% and 110%. The immunosensor and related analytical method were validated by parallel determination of leptin in series of plasma from children suffering from malnutrition and a control group, using Enzyme-Linked Immunosorbent Assay (ELISA) and SPRi. Pearson's correlation coefficient was equal to 0.991. The developed immunosensor and related method are more direct, faster and much simpler than ELISA.
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Sankiewicz et al. (2021) studied this question.