title: Peptide-lignosulphonic acid precipitation zones in agar gel. A direct micro quantitative procedure for the determination of peptide-precipitating lignosulphonic acids in aqueous solution.
mesh_terms: D000362:Agar; D011232:Chemical Precipitation; D005782:Gels; D008031:Lignin; D008722:Methods; D008832:Microchemistry; D010455:Peptides; D013451:Sulfonic Acids; D013696:Temperature; D013997:Time Factors
chemical_list: D005782:Gels; D010455:Peptides; D013451:Sulfonic Acids; D000362:Agar; D008031:Lignin