A. Nagar, “Study On Poly Vinyl Chloride Based Sensor For Anion Recognition Using 1 12 diaaza 5 8 dioxo 3 4 10 dibenzoylcyclotetradeca 2 11 diene L1[DADODBCT Schiff Based Macrocyclic Receptor”, ijpba, vol. 4, no. 5, Mar. 2014.