Résumé
Objective:To study the valuation and uncertainty evaluation of the purity determination of aminopyrine by two different principle methods. Methods:According to Technical Norm of Primary Reference Material and Technical Norm of Measurement,HPLC and acid-base titration were selected for studying the valuation of the purity determination of aminopyrine, and the uncertainty evaluation of the two different principle methods was systematically evaluated. Results:By using the two different principle methods,the standard value and uncertainty of aminopyrine content was 99.66% ± 0.08%(k = 2,P = 0.95). Conclusion:The valuation and uncertainty evaluation of the purity determination of aminopyrine by using HPLC and acid-base titration are accurate and reliable,which can avoid the defects by using single analysis method,and is helpful to improve the level of quality evaluation and control of aminopyrine. The study provides scientific basis for the development of aminopyrine purity reference materials.
Résumé
The preventive effect of garlic against toxicity of dimethylnitrosamine (NDMA) in rats medicated with aminopyrine (AP) and NaNO2 was investigated. 28 rats were divided into three groups. The 6 rats of group C were set as control taking basal diet; the 10 rats of group B were given basal diet, AP, and NaNO2; the 12 rats of group A were given basal diet with an addition of 10% of garlic, AP and NaNO2. AP and NaNO2 in the dosage of 30 mg per kg of body weight were dissolved in 0.5% acetic acid and given by gavage to rats of groups A and B.During the experimental period of 35 days, 3 rats of group B died while all the rats of group A survived. At the end of the experiment, Hb, SGPT and SGOT were determined and all rats were killed for pathological studies. It was found Hb value of group A was higher than that of group B (P