Spectra of TLC showes that fruit powder of D. margaritae has a spot at the same position as sanguis draconis, but not the same with resia draconis and dracohodin perochlorate.

• 结果农明：黄藤果实粉末薄层层析图有一个斑点与血竭相同，但与血竭素高氯酸盐和龙血竭都不同。