title: Gaseous formaldehyde: a sensitive chromatographic detection reagent for tryptophanyl-dipeptides.
mesh_terms: D004151:Dipeptides / Q000032:analysis*; D005557:Formaldehyde; D005740:Gases; D007202:Indicators and Reagents; D014364:Tryptophan / Q000032:analysis*
chemical_list: D004151:Dipeptides; D005740:Gases; D007202:Indicators and Reagents; D005557:Formaldehyde; D014364:Tryptophan