CONCLUSION the sample pretreatment method established in this experiment is not only of the minimized impurity interference for drugdetermination, but also of higher drug recovery.
结论这种样品处理方法既消除了杂质对药物测定的干扰，也保证了较高的提取回收率。
2
It can be applied to modern biological research, drugdetermination, agricultural research, chemicals, food and medical units with UV absorption of the samples for quantitative analysis.
它可应用于现代生物学研究，物测定、农业科研、工、食品及医疗单位对具有紫外吸收的样品作定量分析。
3
Biological assays play an important role both in conventional drug quality control and in determination of biological activity of a compound with unknown structures.