Mohammed Abdulquddoos Al-Mutawakil

Reference-standard and calibration-model dependence of AlCl3-reactive flavonoid estimates in yemeni Malva verticillata L. leaf extract

Aluminum chloride colorimetry is widely used for preliminary flavonoid estimation, but results depend on reference standard, calibration model, and unresolved sample optical background. We re-analysed archived data from a completed undergraduate thesis on a methanolic leaf extrac...