radioactive marker

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Related to Isotopic labeling: radiolabeled

radioactive marker

A compound containing a radio-isotope atom whose movement through a chemical reaction can be monitored by virtue of the radiation emitted.
References in periodicals archive ?
Isotopic labeling is one referenced technique for the quantification of any compound, as it uses a known amount of stable isotopically substituted analog to a sample [4].
In addition to isotopic labeling, enzyme labeled immunoassays and such new technologies as fluorescence polarization immunoassay have become available to laboratorians.
The aims of ISOTOPICS are: i) to train the next generation of European chemists with expertise in isotopic labeling and advanced medicinal chemistry through a first-class taught and research training program combined with a highly interactive secondments plan; ii) to develop innovative and general isotopic labeling chemistry and radiochemistry to streamline the synthesis of labeled small-molecule drugs and biologics; iii) to work closely with the European pharmaceutical industry to apply the new labeling methods to drugs currently in development in order to provide solutions to the most pressing problems in drug innovation.
The final problem in the development of a CCK RIA has been difficulty with isotopic labeling of the peptide.
These goals require a leap forward with respect to today s protocols, and we propose to achieve this through a combination of innovative NMR experiments and isotopic labeling, faster MAS rates and high magnetic fields.