title: High-performance liquid chromatographic determination of hydroxyproline after derivatization with 4-dimethylaminoazobenzene-4'-sulphonyl chloride.
mesh_terms: D002478:Cells, Cultured; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D002855:Chromatography, Thin Layer / Q000379:methods; D005347:Fibroblasts / Q000032:analysis*; D006801:Humans; D006909:Hydroxyproline / Q000032:analysis* / Q000302:isolation & purification; D012867:Skin; D004124:p-Dimethylaminoazobenzene / Q000031:analogs & derivatives
chemical_list: C010572:4-N,N-dimethylaminoazobenzene-4'-sulfonyl chloride; D004124:p-Dimethylaminoazobenzene; D006909:Hydroxyproline