WANG Jin-yu, ZHANG Xu, TONG Yan, et al. Optimal Technique for Eliminating -Butyl Alcohol and Determination of -Butyl Alcohol Vestigial in Tianshu Dropping Pills[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(10): 15-17.
WANG Jin-yu, ZHANG Xu, TONG Yan, et al. Optimal Technique for Eliminating -Butyl Alcohol and Determination of -Butyl Alcohol Vestigial in Tianshu Dropping Pills[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(10): 15-17.DOI:
Objective: To establish a optimum process for eliminating n-butyl alcohol in TianShu dropping pills and detect vestigial of n-butyl alcohol in intermediate of concentrated solution. Method :To use the orthogonal experimental design method and be taken as evaluating norms by vestigial of n-butyl alcohol
the analysis of vestigial of n-butyl alcohol was carried out on GC and optimized the conditions. Result: The optimal technique for eliminating n-butyl alcohol was 80 ℃ reduced-pressure distillation with three times. The solution add 0.25 times of water every time. The recovery of eliminating n-butyl alcohol was 101.13% with RSD of 1.10%. Conclusion: The optimal technique was convenient