YAKHAK HOEJI (약학회지)
- Volume 31 Issue 5
- /
- Pages.330-337
- /
- 1987
- /
- 0377-9556(pISSN)
- /
- 2383-9457(eISSN)
Spectrophotometric Determination of Ephedrine Alkaloids by Charge-Transfer Complexation
전하이동 착물형성에 의한 Ephedrine Alkaloids의 분석화학적 연구
Abstract
The weak UV absorbing ephedrine alkaloids such as ephedrine, pseudoephedrine, methylephedrine and norephedrine could be analyzed by charge-transfer spectrophotometric method. The results obtained are summarized as follows: (1) It was possible to determine a weak UV absorbing ephedrine alkaloids using the intense charge-transfer UV bands in chloroform. (2) This method was suitable for the spectrophotometric determination of ephedrine alkaloids in mixed pharmaceutical preparation. (3) Linear relationship was found between absorbance and concentration in the range of 1.0
Keywords