title: Determination of the S-methyl isomer in technical grade fenitrothion by gas chromatography and high speed liquid chromatography;.
mesh_terms: D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D005278:Fenitrothion / Q000032:analysis*; D006358:Hot Temperature; D007536:Isomerism; D013058:Mass Spectrometry; D008722:Methods; D008745:Methylation
chemical_list: D005278:Fenitrothion