Fig. 2From: Rapid screening of critically ill patients for low plasma vitamin C concentrations using a point-of-care oxidation–reduction potential measurementScatter plot with exponential model in thawed plasma samples (n = 117), dataset 1 (a), and in fresh plasma samples (n = 43), dataset 2 (b). Equation: \({\text{plasma }} {\text{vitamin }} {\text{concentration}}=785.19 {e}^{-0.030 sORP}\) Back to article page