For the quality control of Guiqi Antanemic Granules, its astragalin A content was determined by extraction of the granules through macroporous resin followed by TLC colorimetry.

• 采用大孔树脂纯化黄芪甲甙后，用薄层比色法测定黄芪甲甙含量，以控制制剂质量。