Content Analysis of Baicalin and Heavy Metals in Scutellaria baicalensis Georgi Cultivated in Jizhou District

This study aimed to explore an analysis method for baicalin in Scutellaria baicalensis Georgi and make a reference for the analysis of the medicinal value of S. baicalensis cultivated in Jizhou District. The content of baicalin in S. baicalensis cultivated in Jizhou District was determined using high-performance liquid chromatography (HPLC) to judge whether it met the requirements of Chinese Pharmacopoeia; and according to the requirements of the Chinese Pharmacopoeia of 2015 edition, the contents of heavy metals were determined by ICP-MS. The results showed that the contents of baicalin, Cr, Cu, As, Cd and Pb in S. baicalensis planted in Jizhou District were 14.625 05%, 11.360 12.830 , 0.062 315 , 0.025 715 and 0.176 65 μg/g, respectively. The content of baicalin in S. baicalensis planted in Jizhou District was much higher than the standard (≥ 9.0%) of Chinese Pharmacopoeia of 2015 edition, and the contents of heavy metals were also below the limit (≤20/1 000 000) required by Chinese Pharmacopoeia of 2015 edition.