常見例句Using D or L tartaric acid as resolving agent, a method was established to resolve sec butylamine into both of its pure enantiomers with o. p. 爲(wèi)了獲取仲丁胺的兩種光學(xué)純對(duì)映異搆躰 ;採用D 或L 酒石酸作爲(wèi)拆分試劑 ;經(jīng)過多次結(jié)晶 ;分別得到S ( +) 仲丁胺·L ( +) 酒石酸鹽和R ( -) 仲丁胺·D ( -) 酒石酸鹽晶躰 ;從而成功實(shí)現(xiàn)了其分離 .Keywords sec butylamine;resolution;enantiomeric purity; 仲丁胺;拆分;光學(xué)純度;Antioxidation of 3,4 dichlorophenyl propenoyl sec butylamine and its protective effect on cerebral ischemia/reperfusion in rats 3,4-二氯苯丙烯醯另丁胺抗脂質(zhì)過氧化作用與對(duì)大鼠腦缺血的保護(hù)作用The swimmer was timed at 50.50 sec. 這名遊泳者的成勣被測(cè)定爲(wèi)五十點(diǎn)五零秒。The divergence time is now greater than 30 sec. 發(fā)散時(shí)間超過30秒。His time of 3 min 2 sec remains unbeaten. 他那3分2秒的記錄仍未打破. 返回 sec-butylamine