Fig. 6From: Immune-enrichment of insulin in bio-fluids on gold-nanoparticle decorated target plate and in situ detection by MALDI MSCorrelation of MS intensity with the concentrations of insulin (0.8, 1.6, 4, 8, 16, 32, 48, 60, and 72 nM) spiked in PBS buffer (blue circle) or artificial serum-mimic (red square) containing albumin (35 mg/mL), transferring (2 mg/mL) and IgG (6 mg/mL). Data represent MEAN ± SEM. n ≥ 3Back to article page