free base中文什么意思

内倾梳发片

游离碱

• free:    adj. (freer; frees ...
• base:    adj. 1.贱的，劣的；卑下的，低 ...
• ethambutol free base:    乙胺丁醇

例句与用法

1. Research and development of sn - ag - sb lead - free based solders
   系列合金的研究与开发
2. The results showed that a function of length of the side chain has a dramatic effect on mesophase formation in the porphyrin free base and complex
   最后，研究了酚氧基（ rcg ）中烷基一）碳链长度对叶琳及金属锌叶琳配合物材料液晶性能的影响。
3. Meso - tetra ( 4 - acyloxyphenyl ) pophyrin was prepared by usual procedure from acyl chloride and meso - tetra ( 4 - hydroxyphenyl ) porphyrin in benzene and obtained in 86 . 4 % yield . treatment of the free base with zinc chloride in dimethyl formamide ( dmf ) - dichloromethane ( ch2cl2 ) yielded corresponding zinc porphyrin complex . the spectral data ( uv - visjr / h - nmr ) and elemental analysis are in agreement with the assigned structures
   在合成工作基础上，采用紫外可见光谱( uv - vis ) 、红外光声光谱( ftir - pas ) 、核磁共振氢谱( ~ 1hnmr ) 、元素分析、摩尔电导等手段研究了卟啉及金属卟啉材料的组成及结构。

百科释义

Freebase or free base refers to the pure basic form of an amine, as opposed to its salt form. The amine is usually an alkaloid natural product.