采用薄层扫描法测定小儿肝炎口服液中黄芩甙的含量。黄芩在硅胶Ｇ板上分离，用醋酸丁酯－甲酸一水（５：２：１）做为展开剂，用岛津ＣＳ－９３０双波长扫描仪进行色谱扫描λｓ＝２９０ｎｍ，λＲ＝３７０ｎｍ．平均回收率为１００．６４％，ＣＶ为１．２９％。 TLC scanning was used to determine the content of jaundice in the oral solution of pediatric hepatitis. Astragalus membranaceus was separated on a silica gel G plate and butyl acetate-formic acid monohydrate (5:2:1) was used as the developer. Chromatogram scan was performed using a Shimadzu CS-930 dual-wavelength scanner. λs=290 nm, λR=370 nm. The average recovery rate was 100.64%, and the CV was 1.29%.