亚洲精品无码久久久久y,一二三四免费BD高清视频,公交车强摁做开腿呻吟H视频,亚洲一区精品无码色成人

客戶咨詢熱線:
Technical articles技術(shù)文章
首頁(yè) > 技術(shù)文章 >H-Cube 連續(xù)流動(dòng)氫化儀在氘化反應(yīng)方面的應(yīng)用

H-Cube 連續(xù)流動(dòng)氫化儀在氘化反應(yīng)方面的應(yīng)用

 更新時(shí)間:2012-06-25 點(diǎn)擊量:2120

INTRODUCTION
Deuterium-labeled compounds are widely used as research tools in chemistry. Their importance lies in a number of applications, such as:
• proving reaction mechanisms
• investigation of a compound’s pharmacokinetic properties
• internal standards in mass spectrometry
• compound structure determination in NMR spectroscopy.
Conventional techniques for the synthesis of deuterated compounds utilize D2 gas as a deuterium source. However, there are drawbacks to utilizing deuterium gas on a laboratory scale, such as the handling of the gas itself. Other methods have been employed to overcome this difficulty such as catalytic H–D exchange reactions between H2 and D2O. However, these methods are time consuming and do not produce high purity D2 and they also require high pressure, the use of a special catalyst, or an excess amount of a strong base or acid1.
The H-Cube® continuous flow system is capable of generating deuterium gas from the electrolysis of D2O, which is readily available in 99.98% purity and is easy to handle.

 

 



Official ThalesNano website: www.thalesnano.com
Official ThalesNano contact : flowchemistry@thalesnano.com

 

  

更多詳情,請(qǐng)培安公司:
:北京: 上海:  成都: 廣州:
: sales@pynnco.comwww.pynnco.com
东北少妇不带套对白第一次| 被陌生人做了一个小时| 欧美 大码 变态 另类| 在厨房拨开内裤进入毛片| 久久精品国产亚洲AV久| 色欲AV人妻精品麻豆AV| 国产亲妺妺乱的性视频| 女人与公狍交酡过程高清视频| 大炕上大战白胖老妇| 成人精品一区二区三区中文字幕| 一边摸一边叫床一边爽| 男女囗交大图片26交| XXXX丰满小少妇高潮| 无码区A∨视频体验区30秒| 亚洲AV无码专区国产乱码电影| 欧美综合自拍亚洲综合图片区| 久久AV无码专区亚洲AV桃花岛| 美女无遮掩内衣胸罩| 激情 小说 亚洲 图片 伦| 欧美激情肉欲高潮视频| 性国产SE╳O色欲A片欢迎观看| 国产成人精品亚洲日本在线观看| FREE性满足VIDE0SHD| 国产熟女露脸大叫高潮| 人妻18毛片A级毛片免费看| 丰满熟女人妻大乳| 粗大的内捧猛烈进出爽视频| 人妻上司厨房出轨2HD院线| 97色伦在线公开观看| 亚洲日韩激情无码一区| 嗯啊H客厅HH青梅H涨奶视频| 偷偷色噜狠狠狠狠的777米奇| 国产三级做爰在线播放| JEALOUSVUE成熟| 久久婷婷五月综合色奶水99啪| 亚洲AV永久无码天堂网毛片| 九九精品国产亚洲AV日韩| 在仓库玩50岁保洁女| 一女战三男黑人发出惨叫| 偷窥日本少妇撒尿CHINESE| 2012手机免费观看版国语|