Figure 2 | Scientific Reports

Figure 2

From: Validation of low-cost reflectometer to identify phytochemical accumulation in food crops

Figure 2

(A) correlation between phenolic standard curve concentrations and StellarNet absorbance averaged across 720–770 nm wavelength, (B) relationship between Reflectometer reflectance calculated at 850 nm, (C) correlation between Reflectometer and StellarNet absorbance assessing phenolic concentrations calculated from Lettuce (blue circles) and Carrot (orange circles) samples, and (D) carrot or lettuce samples phenolic content observed from StellarNet spectrometer and Reflectometer.

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