The method for the measurement and identification of the quality of China urushi is still an old and empirical qualitative method at present. We wish to use an advanced scientific method for reaching the quantitative ...The method for the measurement and identification of the quality of China urushi is still an old and empirical qualitative method at present. We wish to use an advanced scientific method for reaching the quantitative step of the molecular level. Therefore we provide a new method for the measurement and identification of the quality of Ghina urushi on the basis of its structure.展开更多
In a previous paper, the authors have reported structures of the saturated urushiol, the monoene urushiol, the lone-diene urushiol and the conjugated-triene urushiol existing in China urushi. Corbett and Billets have ...In a previous paper, the authors have reported structures of the saturated urushiol, the monoene urushiol, the lone-diene urushiol and the conjugated-triene urushiol existing in China urushi. Corbett and Billets have studied the properties of the urushiol of the poisonous oak by separating the compounds of the olefin of the urushiol by the thin layer method, and then determined their structures by spectral analysis. Huang and展开更多
Ⅰ. INTRODUCTION This paper is a report of our analysis of the NMR spectrograms about 47 kinds of China urushi, which are recorded on the XL-200 NMR spectrometer. These urushis include the many kinds of good urushi in...Ⅰ. INTRODUCTION This paper is a report of our analysis of the NMR spectrograms about 47 kinds of China urushi, which are recorded on the XL-200 NMR spectrometer. These urushis include the many kinds of good urushi in different parts of Hubei, Sichuan, Henan, Shaanxi, Guizhou and other provinces of China.展开更多
文摘The method for the measurement and identification of the quality of China urushi is still an old and empirical qualitative method at present. We wish to use an advanced scientific method for reaching the quantitative step of the molecular level. Therefore we provide a new method for the measurement and identification of the quality of Ghina urushi on the basis of its structure.
文摘In a previous paper, the authors have reported structures of the saturated urushiol, the monoene urushiol, the lone-diene urushiol and the conjugated-triene urushiol existing in China urushi. Corbett and Billets have studied the properties of the urushiol of the poisonous oak by separating the compounds of the olefin of the urushiol by the thin layer method, and then determined their structures by spectral analysis. Huang and
文摘Ⅰ. INTRODUCTION This paper is a report of our analysis of the NMR spectrograms about 47 kinds of China urushi, which are recorded on the XL-200 NMR spectrometer. These urushis include the many kinds of good urushi in different parts of Hubei, Sichuan, Henan, Shaanxi, Guizhou and other provinces of China.
