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出 处:《中国中药杂志》1995年第1期33-34,共2页China Journal of Chinese Materia Medica
摘 要:样品经超声提取后,在硅胶GF_(254)薄板上,以甲苯-乙酸乙酯-甲酸(2:3:2.2)展开,测定波长280nm,参比波长207nm,线性范围0.46~4.6μg/ml,平均回收率为98.35%,RSD=2.82%。aicalin in the samples was extracted with ultrasonic wave, the extract was spotted on thin-layer plates of gelGF_(254) and developed with the mobile phase consisting of toluene-ethylacetate-formic acid (2 : 3 : 2. 2). Determinationswere carried out with Shimadzu CS-930 TLC scanner with λ_s= 280 nm and λ_R= 207 nm. The linear range was 0. 46-4. 6μg/ml. The average recovery of baicalin from the samples was 98. 35 %,RSD= 2. 82% .
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