antibiotic binding Tetra 27.3 Tetra 32.6 Tetra 30.8 Tetra 34.8 Eryth 21.6 Eryth 17.4 Eryth 18.3 Eryth 19.0 Chlor 29.2 Chlor 32.8 Chlor 25.0 Chlor 24.2