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分离3,5,7,2',4'-五羟基黄酮和3,5,7,3',4'-五羟基黄酮,可选用的方法是

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5,7,4’-三羟基黄酮  5,7,3’,4’-四羟基黄酮  3,5,7,4’-四羟基黄酮  3,5,7,3’,4’-五羟基黄酮  3,5,7,3’,4’,5’-六羟基黄酮  
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5,7,4’-三羟基黄酮  5,7,3’,4’-四羟基黄酮  3,5,7,4’-四羟基黄酮  3,5,7,3’,4’-五羟基黄酮  3,5,7,3’,4’,5’-六羟基黄酮  
5,7,4′-三羟基黄酮  5,7,3′,4′-四羟基黄酮  3,5,7,4′-四羟基黄酮  3,5,7,3′,4′-五羟基黄酮  3,5,7,3′,4′,5′-六羟基黄酮  
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5,7,4′-三羟基黄酮  5,7,3,4′-四羟基黄酮  3,5,7,4′-四羟基黄酮  3,5,7,3′,4′-五羟基黄酮  3,5,7,3′,4′,5′-六羟基黄酮  
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5,7,4′-三羟基黄酮  5,7,3′,4′-四羟基黄酮  3,5,7,4′-四羟基黄酮  3,5,7,3′,4′-五羟基黄酮  3,5,7,3′,4′,5′-六羟基黄酮  
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5,7,4′-三羟基黄酮  5,7,3,4′-四羟基黄酮  3,5,7,4′-四羟基黄酮  3,5,7,3′,4′-五羟基黄酮  3,5,7,3′,4′,5′-六羟基黄酮  
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