화학발광법에 의한 수용액 중의 퀴닌 정량
Determination of quinine in aqueous solution bychemiluminescence method
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Abstract
A method to determine quinine in aqueous solution by chemiluminescence method using a stopped flow system has been studied. The method is based on the increased chemiluminescence intensity with the addition of quinine to a solution of lucigenin and hydrogen peroxide. The effects of KOH concentration, flow rate of reagents, H2O2 concentration used for the masking of quinine on the chemiluminescence intensity have been investigated. The calibration curve for quinine was linear over the range from 1.0107 M to 1.0103 M, coefficient of correlation was 0.993 and the detection limit was 3.0108 M under the optimal experimental conditions of 1.0M, 1.5M, 3.0mL/min for the concentration of H2O2, KOH and flow rate of reagents, respectively.