SELECTIVE AND SENSITIVE DETERMINATION OF TANNIC ACID USING A 1-BENZOYL-3-(PYRROLIDINE) THIOUREAFILM MODIFIED GLASSY CARBON ELECTRODE

Yıl 2017, Cilt: Volume 2 Sayı: İssue 1 (1) - 2.İnternational Congress Of Forensic Toxicology, 117 - 117, 16.02.2017

Elif Çalık Demet Uzun Ümmihan Taşkoparan Yılmaz

Öz

In this study
the selective determination of tannic acid (TA) was performed using a glassy
carbon (GC) electrode modified with 1-Benzoyl-3-(pyrrolidine) thiourea (PrTu).
PrTuwas deposited on the GC electrode in nonaqueous media by cyclic
voltammetry. PrTu-GC electrode demonstrated an electrocatalytical effect on the
oxidation of TA using differential pulse voltammetry (DPV) method in 0.1 M
Britton Robinson (BR) buffer solution of pH 2. Under optimum conditions linear
calibration graphs were obtained over the TA concentration range 2.0×10−6 to
4.2×10−5 M. The detection of limit (LOD) was found as 0.6 µM. The proposed
electrode was applied to the determination of TA in tea sample with
satisfactory results.

Anahtar Kelimeler

SELECTIVE AND SENSITIVE DETERMINATION OF TANNIC ACID USING A 1-BENZOYL-3-(PYRROLIDINE) THIOUREAFILM MODIFIED GLASSY CARBON ELECTRODE

Kaynakça

• Elif ÇALIK, Demet UZUN, Ümmihan Taşkoparan YILMAZ
• Gazi University, Polatlı Science and Art Faculty, Department of Chemistry, 06900 Polatlı, Ankara/Turkey Gazi University, Science Faculty, Department of Chemistry, 06500, Ankara/Turkey