Analysis Enzymes 160 Food 82 Drugs 39 Water 35 Materials 29 Polymers 28 Metals 24 Spectrum analysis 24 Composition 20 Pollution 19 Proteins 18 Polymers and polymerization 17 Testing 17 Chromatographic analysis 16 Measurement 15 Surfaces (Technology) 15 Air 14 Soils 14 analysis 14 Environmental aspects 12 Membranes (Biology) 12 Organic compounds 12 Trace elements 12 Biomolecules 11 Chemistry, Analytic 10 Immunoassay 10 Plastics 10 Technique 10 DNA 9