| 一阶导数光谱法测定食品植物油中桐油掺混的研究 |
| |
| 引用本文： | 朱炳辉.一阶导数光谱法测定食品植物油中桐油掺混的研究[J].光谱学与光谱分析,1998,18(3):376-380. |
| |
| 作者姓名： | 朱炳辉 |
| |
| 作者单位： | 广东省药品检验所 |
| |
| 摘 要： |
|
| 关 键 词： | 桐油 食用植物油 掺混 食用油 分析 植物油 |
Study on the determination of tung oil adulterated in vegetable oils by first derivative spectrophotometry] |
| |
| B Zhu,J Mo,R Huang.Study on the determination of tung oil adulterated in vegetable oils by first derivative spectrophotometry][J].Spectroscopy and Spectral Analysis,1998,18(3):376-380. |
| |
| Authors: | B Zhu J Mo R Huang |
| |
| Institution: | Guangdong Provincial Institute for Drug Control, 510180 Guangzhou. |
| |
| Abstract: | A method of first derivative spectrophotometry for qualitative and quantitative analysis of tung oil adulterated in vegetable oils, including peanut oil, bean oil, rape seed oil, tea seed oil, palm oil and mixed vegetable oil, was established. The spectrum of tung oil features three valleys at 291.3, 278.3 and 266.4nm, and three peaks at 284.1, 271.5 and 260.7nm. At 291.3nm, the coefficient (deltaE(1%)1cm/deltalambda) was -1.03 x 10(3). When the concentration of tung oil adulterated in vegetable oils was downed to 0.1%, the above specialities still remain and the changes in wavelengths were not more than 0.7nm. The detection limit of the concentration of tung oil adulterated in vegetable oils was lower than 0.1%. |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
|
