1. -Immobilized PVC-NPOE Membrane for Environmentally Friendly Sensing of Cd(II) Ions 2. Optical Sensor for the Determination of Lead(II) Based On Immobilization of Dithizone onto Chitosan-Silica Membrane 3. Application of Ion-Exchange Resin Column for Basic Development of Strontium-90/Yttrium-90 Generator for Preparation of Radiopharmaceutical Therapy 4. Photocatalytic Degradation of Diazin…