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放射性同位素氚标记物自显影具有分辨力高、定位准确故为研究细胞功能代谢奠定了技术基础。氚～胸腺嘧啶核苷(~3H—TdR)、氚—尿嘧啶核苷(~3H—UR)和氚—亮氨酸(~3H—Leu),分别是DNA、RNA和蛋白质合成时的前身物质,用自显影法测定
Radioisotope tritium marker self-imaging with high resolution, accurate positioning so as to study the functional metabolism of cells laid the technical foundation. Tritiated to thymidine (~ 3H-TdR), tritiated uridine (~ 3H-UR) and tritiated-leucine (~ 3H-Leu) were the precursors of DNA, RNA and protein synthesis , With self-imaging method