Research Article

Tetrodotoxin Detection by a Surface Plasmon Resonance Sensor in Pufferfish Matrices and Urine

Figure 4

Calibration curves for the detection of TTX in SAB at pH 4.5 and pufferfish liver extract, pufferfish muscle extract, and urine diluted to 10% in SAB at pH 4.5. Normalized SPR resonant wavelength shift versus the concentration of TTX incubated with 2 μg/mL anti-TTX for 15 minutes by an inhibition assay. The data from the sensorgram was normalized to the maximum anti-TTX response in SAB.
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