用分光光度法测定了竹红菌、竹黄和菌寄生菌培养物中艹北 醌类化合物的总量 ;同时研究了以无水乙醇、丙酮和氯仿为溶剂提取 艹北 醌类化合物的相对效率 ,结果发现以丙酮为溶剂最合适。 The total amount of puromycin compounds in the culture of Pseudomonas, Zhuhuang and bacteria was determined by spectrophotometry. Meanwhile, the relative efficiency of Quercetin quinones extracted by ethanol, acetone and chloroform was studied , And found that acetone is the most suitable solvent.