title: Subnanogram detection of t-butyldimethylsilyl fatty acid esters by mass fragmentography.
abstract: The mass spectra of t-butyldimethylsilyl fatty acid esters all display a pronounced (M-C4H9)+ ion. The proportion of the total ionization carried by this fragment, particularly for saturated and mono-, di-, and tri-unsaturated acid derivatives, facilitates their qualitative analysis at the subanogram level by mass fragmentography.
mesh_terms: D005227:Fatty Acids / Q000032:analysis*; D005231:Fatty Acids, Unsaturated / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D008832:Microchemistry
chemical_list: D005227:Fatty Acids; D005231:Fatty Acids, Unsaturated