醚交換 的英文怎麼說
中文拼音 [míjiāohuàn]
醚交換
英文
trans-etherification-
Borohydride which supported by strongly basic ion exchange resin reduced phseseph giving polymer - supported phenylselenide anion. it reacted with, - unsaturated aldehyde or epoxide to produce corresponding selenide. respective conditions were studied also
強堿型離子交換樹脂支載的四氫化硼與二苯聯硒反應，得到載體化的苯硒陰離子試劑，它與， -不飽和醛及環氧化物反應，生成相應的硒醚.對各自的反應條件也進行了探討The reactive characteristics of tertiary olefins over positive ion exchange resin
叔烯烴在陽離子交換樹脂上醚化反應規律The antimicrobial secretion could be divided into three sections, every section had antimicrobial activity. the first could be extracted by petroleum ether, the second could be extracted by ethyl alcohol, the third could dissove in water and could be separated by sephadex g - 50, g200 gel filtration chromatography and carbornmethyl cellulose - 1 anion - exchange chromatography and detected by a256, . the antimicrobial secretion had wide spectrum and had strong inhitory activity against germs and fungi, they could inhibit sixteen kinds of plant pathogenic germs, eight kinds of animal germs and eight kinds of plant pathogenic fungi
粗提物經石油醚萃取可得第一個活性部分，剩餘部分經無水乙醇萃取可得第二個活性部分，剩餘物質再經凝膠sephadexg - 50後有兩個峰，第二峰有活性，再經凝膠sephadexg - 200後有三峰，第二峰有活性，將其經過陽離子交換柱cm - 1後有兩峰，此兩峰均有抑菌活性。
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