Validation of a ¹H-NMR Spectroscopy Quantitative Method to Quantify Trimethylamine Content and K-Index Value in Different Species of Fish

Figure 2

Detection of TMA by (a) UV method and (b) 1H-NMR method; (A) no spiked sample, (B) sample spiked with 200 μL of the standard solution, (C) sample spiked with 400 μL of the standard solution, and (D) sample spiked with 600 μL of the standard solution (1 mg/mL TMA).

(a)

(b)