Determination of Adulterated Sesame Oil Purity by Extraction Spectrophotometric
Use sesamin in sesame oil to evaluate adulterated sesame oil purity, because the current spectroscopy, chromatography and other methods have different shortcomings, establish extraction spectrophotometric method for determination of adulterated sesame oil, methanol at 50 ℃ in accord-ance with the sesame oil and extraction agent extraction ratio of 1 : 3, the extraction for 120 min, ex-traction liquid and chromogenic reagent by the ratio of 1 : 3, color temperature of 30 ℃ , reaction for 10 min, the maximum absorption wavelength of 510 nm to measure the sesame oil purity in the adul-terated sesame oil, method of standard deviation of less than 0. 55%, and the recovery rate ranges from 99. 2% to 104. 7%, the method is applied to the evaluation of various brands of pure sesame oil and blend sesame oil.
NETL
NSTL
万方数据
维普
