2 To determine the content of aconitine and meaconitine in the extracts of kusnezoff monkshoot root and chavicin in long pepper extract by high performance liquid symptoms chromatograpy (HPLC).

• 2 用高效液相色谱(HPLC)法测定草乌提取物中新乌头碱和乌头碱含量、荜茇浸膏中胡椒碱的含量。