Determination of anthraquinones in Zhuyufuzheng capsules by colorimetry

Key words: 
• Anthraquinones /
• Colorimetry /
• Zhuyufuzheng capsules

Abstract: OBJECTIVE To establish a method to determinate the quantity of anthraquinones in Zhuyufuzheng capsule.METHODS Anthraquinones in Zhuyufuzheng capsules was determined by improved colorimetry.RESULTS This method was simple,quick and reproducible(RSD=1.58%, n=5).The average recovery was 99.86%.By this method,the quality of Zhuyufuzheng capsules can be controlled effectively.CONCLUSION The improved colorimetry can be used to determinate the quantity of anthraquinones in Zhuyufuzheng capsules.This method can be used for the quantitative analysis of other Chinese traditional medicines which contained anthraquinones as well.