CAJ | 학술논문

为了研究更简便地测定食品中香兰素含最的方法,采用可见分光光度法测定麦片中香兰素的含量,其吸光度与香兰素含量呈正比,建立线性方程为y=2.8939x+0.009(r=0.9990),线性范围为0.0304～0.3652g/L,检出限为2.2206×10~(-2)g/L,加标回收率为101.8%,RSD为0.44%.该方法重现性好、可行,对麦片进行测定,结果满意.
위료연구경간편지측정식품중향란소함최적방법,채용가견분광광도법측정맥편중향란소적함량,기흡광도여향란소함량정정비,건립선성방정위y=2.8939x+0.009(r=0.9990),선성범위위0.0304～0.3652g/L,검출한위2.2206×10~(-2)g/L,가표회수솔위101.8%,RSD위0.44%.해방법중현성호、가행,대맥편진행측정,결과만의.
Vaninin in oatmeal was determined by spectrophotometric method,which is based on the reaction between vanillin and thiobarbituric acid in hydrochloric acid solution.The detection wavelength was set at 436.0 nm.A linear regression equation for absorbance(y)at 436.0 nm wavelength as a function of vanillin concentration(x)was established as follows:y = 2.8939x +0.009(r = 0.9990),with a linear range from 0.0304 to 0.3652 g/L.The detection limit of the method was 2.2206×10~(-2) g/L.The average spike recovery of vanillin was 101.8%,with 0.44% relative standard deviation.This method is characteristic of simplicity,rapidity,accuracy and good reproducibility.