Continuous flow injection analysis via NAG-4SX3-3D analyzer utilized to determination of resorcinol

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-4SX3-3D 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 (0.05-32) mmol.L-1 for resorcinol measurement and RSD percent for the repetition (n=6) was significantly lower than 0.3% for (0.7, 23 millimol.L-1) with L.O.D.=48.1687 ng/sample from the progressive dilution across the calibration graph's lowest concentration linear dynamic range (r=0.9997), (correlation coefficient), percentage linearity (R2 %=99.95). The proposed approach was compared to the previous technique (UV-spectrophotometric at λmax=273 nm). It can be concluded that, in addition to the technique's sensitivity (developed) and the use of a few chemicals, it outperforms the 10 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.