High resolution 19F{1H} nuclear magnetic resonance spectroscopy and liquid chromatography-solid phase extraction-offline 1H nuclear magnetic resonance spectroscopy for conclusive detection and identification of cyanide in water samples

► Clean and easy derivatization for identification of cyanide. ► By 19F{1H} NMR (without any sample cleanup), online LC-UV-SPE-offline 1H NMR experiments. ► Additionally GC-MS & GC-FTIR experiments were also performed to confirm the identity of the derivative. ► HPLC separation under gradient elution, using non-deuterated solvents. ► Yields clean and reproducible 19F{1H}, 1H NMR spectra and HPLC traces.