Quantitative Analysis Of Fˉ Ion Recognition By A New Chemosensor from Flavon Group

R Rahmawati (Study Program of Chemistry, Department of Education of Mathematics and Natural Sciences, Universitas Mataram, Jalan Majapahit 62, Mataram, Indonesia)
Syarifa Wahidah Al-Idrus (Chemistry Education Division, Faculty of Teacher Training and Education, University of Mataram)
Baiq Nila Sari (Department of Chemistry, Faculty of Science, Chulalongkorn University, Thailand.)
Bambang Purwono (Department of Chemistry, Faculty of Mathematics and Natural Science, Gadjah Mada University. Indonesia)
Sabirin Matsjeh (Department of Chemistry, Faculty of Mathematics and Natural Science, Gadjah Mada University. Indonesia)

Acta Chimica Asiana
Vol. 3 No. 1 (2020)

A new chemosensor S8 compound from the flavon group that has been successfully synthesized. Test its ability as a chemosensor for F- anion, providing positive results that it can recognize F- anion with response to an increase in fluorescent solution. Titration of S8 solution in DMSO solvents was carried out with F- anion at various concentrations and then measurements were made on fluorometry instruments. The fluorescent titration emission spectrum shows that the S8-Fˉ host-guest interaction quantitatively in the form of LOD and kass. LOD and Kass values are 6.43 × 10ˉ4 M and 2 × 106 Mˉ1, respectively.