Determination on total flavonoid content in flowers, stems and leaves of Trollius chinensis Bge. in Bashang district
坝上地区金莲花及其茎叶总黄酮的测定

Objective To study the total flavonoid content in flowers,stems and leaves of Trollius chinensis Bge. in BaShang at different picked times. METHODS Using rutin as a reference substance,the total flavonoid in flowers,stems and leaves at different picked times were determined by UV absorption . RESULTS The maximum content of flowers in BaShang was 8.459％，the minimum content was 5.139％，while there is a 3.32% discrepancy between them, and the average was 6.939％；The content discrepancy of the total flavonoid content in flowers(2006 and 2007) was only 0.43％；The maximum content of stems and leaves was 6.511%，which appeared in the the middle ten-day of June. CONCLUSION The total flavonoid content in flowers of BaShang is high and has a steady quality .The stems and leaves can be used as a new officinal part.The best picked time in Weichang is the middle ten-day of June.