Organics.
D002623:Chemistry Techniques, Analytical; D002625:Chemistry, Organic; D003902:Detergents / Q000032:analysis; D007202:Indicators and Reagents; D007220:Industrial Waste; D008722:Methods; D055601:Organic Chemistry Phenomena; D010575:Pesticides / Q000032:analysis; D010578:Petroleum / Q000032:analysis; D010636:Phenols / Q000032:analysis; D012722:Sewage; D014876:Water Pollution; D014881:Water Supply / Q000032:analysis*
D003902:Detergents; D007202:Indicators and Reagents; D007220:Industrial Waste; D010575:Pesticides; D010578:Petroleum; D010636:Phenols; D012722:Sewage