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(本文于1997年5月29日收到)
HPLC Determination of Crocin-Ⅰ,Crocin-Ⅱ and Crocins in Croucus Sativus Extract and Tablets
Zhou Sudi and Zhong Huijuan (China Pharmaceutical University,Nanjing,210009)
Abstract:This paper reports a reversed phase high performance liquid chromatographic method to determine crocin-Ⅰ、crocin-Ⅱand crocins in extract and tablets.The experimental conditions of HPLC were as follows:Spherisorb 5 ODS column(150mm×4.6mm)with on-line filter with Guark-column,mobile phase:methanol-water(55∶45),detection wavelength 440nm,flow-rate 1.0mL/min,paper feed-rate 0.5cm/min.The recovery of the method:crocin-Ⅰin crocus extracts was 103.3%(RSD<3.2%),crocin-Ⅱ in crocus extracts was 99.3%(RSD<3.7%),crocins in crocus extracts was 100.4%(RSD<1.7%)(n=9).Crocin-Ⅰ in crocins tablet 98.4%(RSD<1.5%),crocin-Ⅱ in crocins tablet was 101.7%(RSD<1.1%),crocins in crocins tablet was 99.8%(RSD<2.0%).The resolution of this method is fine and accurate.It provides a means for the control of crocus extracts and tablets. Key words:Crocus sativus L.,crocin-Ⅰ,crocin-Ⅱ,crocins tablets,HPLC
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