Nagham Shakir Turkie - Department of chemistry, College of science, University of Baghdad, Baghdad, Iraq
Sarah Faris Hameed - Department of chemistry, College of science, University of Baghdad, Baghdad, Iraq

A fast and sensitive method for detecting resorcinol by producing yellowish-green color species using the reaction of potassium dichromate with resorcinol in a sulfuric acid medium. NAG-۴SX۳-۳D analyzer was used to evaluate the transducer energy response. To improve the sensitivity of the newly developed approach, the relevant parameter was explored. The linear range (۰.۰۵-۳۲) mmol.L-۱ for resorcinol measurement and RSD percent for the repetition (n=۶) was significantly lower than ۰.۳% for (۰.۷, ۲۳ millimol.L-۱) with L.O.D.=۴۸.۱۶۸۷ ng/sample from the progressive dilution across the calibration graph's lowest concentration linear dynamic range (r=۰.۹۹۹۷), (correlation coefficient), percentage linearity (R۲ %=۹۹.۹۵). The proposed approach was compared to the previous technique (UV-spectrophotometric at λmax=۲۷۳ nm). It can be concluded that, in addition to the technique's sensitivity (developed) and the use of a few chemicals, it outperforms the ۱۰ mm irradiation of the classic reference method. Furthermore, continual dilution in CFIA enables the handling of high or low concentrations, opening up a larger range of applications. Based on the foregoing, the developed methodology is judged to be the most suited for resorcinol molecules compared to the reference techniques.

Resorcinol, continuous flow injection analysis