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Conjugates of 24-epibrassinolide and 24-epicastasterone with indoleacetic acid and nitrobenzofurazan were synthesized. It was shown that the prepared conjugates exhibited effective fluorescence properties and could be used as fluorescent-labeled antigens in immunochemical analysis of brassinosteroids of the 24-epibrassinolide class.  相似文献   
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Copolymers of methyl methacrylate with methacrylic acid, with the mole fraction of methacrylic acid units from 0.21 to 0.73, were prepared by radical copolymerization in the bulk. The influence of the composition of the copolymers on the features of their thermal degradation was examined by combined thermal analysis involving differential scanning calorimetry and thermogravimetry.  相似文献   
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