Conclusion The matrine liposomes with high entrapping efficiency can be prepared by ammonium sulphate gradien method. 结论采用硫酸铵梯度法可制得包封率较高的苦参碱脂质体。
Ammonium persulfate and sulfuric acid were used to turn completely the polyphosphoric acid into orthophosphoric radicals, which were then determined by spectrophotometry. 可用过硫酸铵和硫酸将多聚磷酸全部转化成正磷酸根，再用分光光度法测定其质量分数。
