Emodin in Fuke Xiji (gynopathy lotion) has been determined by colorimetry. This method is stable and accurate. The average recovery is 98.32%, RSD=0.81%.

• 采用比色法测定妇科洗剂中大黄素的含量，方法稳定、准确，加样回收率均为98.；32%25，RSD=0