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本文采用比色法测定了鬼针草花果期不同部位中总黄酮含量，并采用纸层析方法对黄酮类成分进行了比较；结果表明：鬼针草各部位中黄酮类成分有较大差异；在花果期，叶和花序中总黄酮含量较高，而茎枝中黄酮含量很低。
In this paper, the colorimetric method was used to determine the content of total flavonoids in different parts of the flowering and fruiting period of Bidens pilosa, and the content of flavonoids was compared by paper chromatography. The results showed that the flavonoids were different in different parts of Bidens pilosa. In flower and fruit stage, the content of total flavonoids in leaves and inflorescences was higher, but the content of flavonoids in stems was very low.