The chemistry of coordination complexes and transition metals 11.8 Trace Elements Absorption 11.8.1 Inhibitors in Absorption 11.8.2 Enhancing the Effect of Absorption of Metals (even trace elements) 11.8.3 Toxic Metal Ion 11.8.4 Enzymes Inhibition 11.8.5 Detoxification by Metal Ion and Chelation 11.9 Metal Complexes in the Cure of Cancer 12. Uses and Applications of Coordination Complexes 12.1 Introduction 12.2 Applications of Metal Complexes 12.2.1 Dye Industry 12.2.2 Biological Enzymes 12.3 Polymer Metal Complexes as Catalysts 12.3.1 Catalytic Activities of Polymers Metal Complex 12.4 Application of Polymer Metal Complexes as Catalysts 12.4.1 Oxidation 12.4.2 Hydrogenation 12.4.3 Hydrolysis 12.4.4 Hydroformylation of Olefins 12.5 Initiation of Radical Polymerisation 12.6 Asymmetric Synthetic and Optical Resolution 12.7 The decomposition of H2O2 12.8 Polymer metal complexes as Heterogeneous Biologically Active Catalysts 12.8.1 Porosity and Surface Area 12.8.2 Extent of Cross Linking 12.8.3 Spacer Groups 12.8.4 Coordination Complex in Analytical Chemistry 12.8.5 Detecting Cations 12.8.6 Group I Cations 12.8.7 Confirmatory Test for Pb2+ Ions 12.8.8 Confirmatory Test for Ag+ Ions 12.8.9 Confirmatory Test for Mercury (1) ion 12.8.10 Group II Cations 12.8.11 Group reagent 12.9 Role of HCl in Group II Analysis 12.9.1 Group III Cations 12.9.2 Confirmatory Test for Fe3+ Al3+ Cr3+ 12.9.3 Group IV cations 12.9.4 Group Reagent 12.9.5 Confirmatory Tests 12.9.6 Group V cations 12.9.7 Group VI Cations 12.9.8 Zero Group Cations 12.9.9 Confirmatory Test for NH4+ ion 12.10 Detecting Anions 12.10.1 Group I Anions 12.10.2 Group of II Anions 12.11 Confirmatory Test for Cl Ion 12.11.1 Chromyl Chloride Test 12.11.2 Br and I 12.11.3 Test for NO3 Ion 12.11.4 Test for C2O42 Ion.