CAJ | 학술논문

该文研究了分光光度法与罗维朋比色计在测定芝麻油色泽时的相互关系，确定了分光光度法的优势。对不同脱色程度的6种芝麻油的罗维朋红值与特定波长下的吸光度进行回归分析。实验结果表明：芝麻油在罗维朋红值特征吸收波长535 nm处的吸光度与罗维朋红值有线性关系，其相关系数为0.9931，且随着罗维朋红值的下降，吸光度也呈下降趋势。分光光度法可以分辨出罗维朋比色计无法识别的色泽差异，从而为油脂脱色工艺创造了良好的条件优化依据。
해문연구료분광광도법여라유붕비색계재측정지마유색택시적상호관계，학정료분광광도법적우세。대불동탈색정도적6충지마유적라유붕홍치여특정파장하적흡광도진행회귀분석。실험결과표명：지마유재라유붕홍치특정흡수파장535 nm처적흡광도여라유붕홍치유선성관계，기상관계수위0.9931，차수착라유붕홍치적하강，흡광도야정하강추세。분광광도법가이분변출라유붕비색계무법식별적색택차이，종이위유지탈색공예창조료량호적조건우화의거。
This paper studies the relationship between spectrophotometer method and Lovibond color indicator,then,identified the advantages of spectrophotometer method. Take value of Lovibond red and absorbance value in a specific wavelength of six different levels of bleaching sesame oil for regression analysis.The result showed that there is a linear relationship between the absorbing value at 535nm of Lovibond red's absorbing wavelength and the value of Lovibond red. The regressive coefficient is 0.986. With the decline in value of Lovibond red,the absorbance value is also decreased. The spectrophotometry was able to detect subtle gaps,and those gaps is that Lovibond can not identify. So, this is a very good method to determine the depth of color,in order to find the most suitable conditions for bleaching.