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Electrospray ionization(ESI)coupled with Fourier transform ion cyclotron resonance mass spectrometry(FT-ICR MS)is a powerful technique capable of detecting heteroatom compounds,present in trace quantities in crude oil and its products without prior sample pretreatment.It enables the assignment of a unique elemental composition to each peak in the mass spectrum
Electrospray ionization (ESI) coupled with Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) is a powerful technique capable of detecting heteroatom compounds, present in trace quantities in crude oil and its products without prior sample pretreatment. It enables the assignment of a unique elemental composition to each peak in the mass spectrum