采用薄层扫描法测定伤科灵中主药山豆根所含的氧化苦参碱的含量 ,使用展开系统 :氯仿 -甲醇-浓氨试液 (4:1:0 1)展开 ,用稀碘化秘钾显色 ,定量扫描 ,波长 :λs=5 2 0nm ,λR =6 5 0nm ,结果加样回收率为 98 35 % ,RSD =3 79。本方法精密度高 ,分离度好 ,能起到控制伤科灵质量的作用 The content of oxymatrine contained in Radix Sophorae var. Chinensis was determined by thin-layer scanning method, and developed using a development system: chloroform-methanol-concentrated ammonia test solution (4:1:0 1) with dilute iodine. The secreted potassium was developed and quantitatively scanned at a wavelength of λ s = 520 nm and λR = 650 nm. The recovery of the sample was 98.35 % with RSD = 3 79. The method has high precision and good separation degree, and can play a role in controlling the quality of wounding