常見例句雙語例句In this paper, enzymatic and ph?otometic methods for labeling DNA with biotin were studied.本文研究酶促和光促兩法進行生物素標記DNA。According to the irreversibility of biotin labeling, a quick method was designed for the purification of biotin labeling small molecule by magnetic separation.根據(jù)生物素標記反應的不可逆性，設計了一種基於磁性分離的快速純化方法。 返回 biotin labeling