目的　改进药典薄层色谱法几处检验标准。方法　在样品预处理、薄层板的制备、展开剂选择及改变展开环境条件、操作技巧等方面加以改进。结果　提高了被测组分的分离度 ,色谱斑点清晰 ,结果判定更加准确 ,可靠。结论　改进后方法更实用易行 Objective To improve the Pharmacopoeia TLC several test standards. Methods to improve the sample pretreatment, the preparation of laminates, the choice of developing agent and change the environmental conditions, operating skills and so on. As a result, the resolution of the tested components is improved, the chromatographic spots are clear, and the judgment of the result is more accurate and reliable. Conclusion The improved method is more practical and easy to implement