摘要
目的:建立火焰原子吸收法测定磺胺氧化锌软膏中锌的含量。方法:检测波长为213．9 nm,灯电流为8．0 mA,狭缝宽度为0．5 nm,燃气流量为2．0 L·min-1,助燃气流量为15．0 L·min-1。结果:锌在0．2～2．0μg·ml-1范围内线性关系良好,相关系数为0．998 4,平均回收率为99．8％(RSD=0．4％,n=9)。结论:该方法能控制磺胺氧化锌软膏的质量,方法简单、结果准确、灵敏度高。
Objective： To establish a FAAS method for determination of content of Zinc in Sulfanilamide and Zinc Oxide Ointment. Method： The determined wavelength was at 213.9 nm,the electric current of the lamp was 8.0 mA,the slit-width was 0.5 nm, the flow rate of burning gas was 2.0 L·min^-1 and the flow rate of gas to help burn was 15.0 L·min^-1. Result： The linear range of zinc was 0.2 - 2.0μg（ r = 0. 998 4 ） the average recovery was 98.8% （ RSD = 0.4%, n = 9 ）. Conclusion： The method is simple, accurate and sensitive, it can be used for control the quatily of sulfanilamide and zinc oxide ointment.
出处
《中国药师》
CAS
2006年第11期1018-1019,共2页
China Pharmacist
