常見例句Mass specta of N-Benzylidene-1-methoxy-1-propylamine have been discussed,Logical loss of molecular ion was deduced. ? 討論了1-甲氧基-N-(芳甲叉基)-1-丙胺類化合物的質(zhì)譜,分析了主要碎片離子的產(chǎn)生過程,推測了該類化合物的裂分規(guī)律。The 10-hydroxylated aza-solamin was first synthesized successfully,and its structure was confirmed by IR,()~1H-NMR and MS specta. 該化合物未見文獻報道,其結構經(jīng)IR1、H-NMR及MS確證。Our Dowell Optical Industrial Co., Ltd is a cooperative company of optical enterprise. Our company mainly product specta... ... 蔽司廈門杜維眼鏡工業(yè)有限公司系眼鏡企業(yè)的協(xié)力廠;專業(yè)生產(chǎn)眼...visible/near-infrared diffuse reflectance specta 可見/近紅外漫反射光譜Keywords Azacrown complexes;Preparation;Infrared specta; 氮雜冠醚配合物;制備;紅外光譜;Keywords litchi pericarp;polysaccharide;GC;infrared specta;composition; 荔枝殼;多糖;氣相色譜;紅外光譜;組成; 返回 SPECTA