VALIDASI METODE OKSIDASI ELEKTROKIMIAYANG TERMEDIASI – KONDUKTOMETRI UNTUK PENENTUAN KADAR FENOL

Abstract

Mediated electrochemical oxidation (MEO) performance can degrade for organic liquid wastes that are toxic and dangerous, especially phenol. The process has many advantages compared to conventional destruction technologies, including biological treatment and adsorption with activated carbon. MEO more over can take place at low temperature, ambient pressure, can be applied on a large scale and transform a compound into a safe form producing CO2 and H2O with the other compound that does not cause new impact to the environment. In this research, MEO is used as a tool of degradation as well as analysis with conductometer a the measurement tool. The method validation is performed by determining the analytical parameters that included sensitivity, detection limit, quntitation limit, precision, accuracy and linear range. The optimum time degradation for the solution at concentration 0.085 mg/L was 105 minutes with an average maksimum efficiency of 29 %. Concentration of phenol solution was used to make MEO -Conductometry calibration curve method 0.017; 0.034; 0.051; 0.068, and 0.085 mg/L. MEO-Conductometry a test method. For method validation, test method was compared with the standard method was of UV-Vis Spectrophotometry. From the comparison of analytical parameters, solution were close to the standard method such as the detection limit of 0.004 mg/L compared to 0.003mg/L, limit of quantitation 0.013 mg/L compared to 0.011 mg/L, precision 0.27 % until 1.08 % compared to 0.35% until 2.25 % , accuracy 0.47 % until 3.14 % compared to 0.6 % until 4.7 % and the compared linearity range of detection limit up to the highest concentration. For method validation test Least Square Fitting. was conducted in conclusion MEO-Conductometry method was not differ significantly with standard method from and above 0.017 mg/L until 0.085 mg/L. Linearitas regretion equation y=4735x +23.9 can be used for determinant phenol concentration of sample in this research calculated from the content CO2 obtained. Mediated electrochemical oxidation (MEO) performance can degrade for organic liquid wastes that are toxic and dangerous, especially phenol. The process has many advantages compared to conventional destruction technologies, including biological treatment and adsorption with activated carbon. MEO more over can take place at low temperature, ambient pressure, can be applied on a large scale and transform a compound into a safe form producing CO2 and H2O with the other compound that does not cause new impact to the environment. In this research, MEO is used as a tool of degradation as well as analysis with conductometer a the measurement tool. The method validation is performed by determining the analytical parameters that included sensitivity, detection limit, quntitation limit, precision, accuracy and linear range. The optimum time degradation for the solution at concentration 0.085 mg/L was 105 minutes with an average maksimum efficiency of 29 %. Concentration of phenol solution was used to make MEO -Conductometry calibration curve method 0.017; 0.034; 0.051; 0.068, and 0.085 mg/L. MEO-Conductometry a test method. For method validation, test method was compared with the standard method was of UV-Vis Spectrophotometry. From the comparison of analytical parameters, solution were close to the standard method such as the detection limit of 0.004 mg/L compared to 0.003mg/L, limit of quantitation 0.013 mg/L compared to 0.011 mg/L, precision 0.27 % until 1.08 % compared to 0.35% until 2.25 % , accuracy 0.47 % until 3.14 % compared to 0.6 % until 4.7 % and the compared linearity range of detection limit up to the highest concentration. For method validation test Least Square Fitting. was conducted in conclusion MEO-Conductometry method was not differ significantly with standard method from and above 0.017 mg/L until 0.085 mg/L. Linearitas regretion equation y=4735x +23.9 can be used for determinant phenol concentration of sample in this research calculated from the content CO2 obtained. Untuk keterangan lebih lanjut silahkan menghubungi http://cisral.unpad.ac.id