食用油中の微量重金属の微分パルスポーラログラフィーによる定量
1978 年 27 巻 5 号 p. 312-313
詳細
1978 年 27 巻 5 号 p. 312-313
Lead and cadmium in vegetable oils were determined by differential pulse polarography. The oils were dissolved into 1 : 1 (vol/vol) ethanol-benzene mixture containing 0.01M LiCl. Heavy metals added to the above solution at concentrations of ppm order showed peak currents proportional to the concentration. The peak potentials of the metal remained constant to the addition of different salts of the metals. This method is rapid and simple in sample preparation, but in some cases it is necessary to destroy the peroxides which interfere the metal peak current measurement.
