首页   按字顺浏览 期刊浏览 卷期浏览 Aqueous Cobalt(II) ion as a Nitrogen-14 Chemical Shift Reagent and Its Application to t...
Aqueous Cobalt(II) ion as a Nitrogen-14 Chemical Shift Reagent and Its Application to the Determination of Betaine, Glycerophosphorylcholine and Ammonium Ion

 

作者: JosannA. Valley,   RonaldF. Evilia,  

 

期刊: Spectroscopy Letters  （Taylor Available online 1990）
卷期: Volume 23, issue 2  

页码: 233-241

 

ISSN:0038-7010

 

年代: 1990

 

DOI:10.1080/00387019008054048

 

出版商: Taylor & Francis Group

 

关键词: Betaine;Glycerophosphorycholine;Nitrogen-14 Shift Reagent;Cobalt (II)

 

数据来源: Taylor

 

摘要:

Aqueous cobalt(II) ion is shown to be an effective chemical shift reagent for nitrogen-14 nuclear magnetic resonance spectroscopy. Addition of an 8 fold excess of cobalt (II) ion to a mixture of betaine, glycerophosphorylcholine and ammonium ion results in baseline resolution of the three components. The chemical shift of each component is a function of cobalt concentration up to a molar ratio of about 4:1 after which, the shifts

 

点击下载:  PDF (219KB)



返 回