Peter J. Anderson,Stephen Dueker,Joshua Miller,Ralph Green,John Roth,Colleen Carkeet,Bruce A. Buchholz
申请号：
US11234079
公开号：
US08202507B2
申请日:
2005.09.23
申请国别(地区):
US
年份:
2012
代理人:
摘要：
The invention provides methods for labeling vitamin B12 with 14C, 13C, tritium, and deuterium. When radioisotopes are used, the invention provides for methods of labeling B12 with high specific activity. The invention also provides labeled vitamin B12 compositions made in accordance with the invention.
