Due to the desire for biological assay techniques of greater sensitivity and specificity than presently exist for the antihypertensive drug guanethidine, tritium labeled guanethidine of high specific activity was prepared for use in radioimmunoassay procedures. This drug has been labeled in other po
Imidoester iodination of immunoglobulins to high specific activity
β Scribed by Georges P. Der-Balian
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 444 KB
- Volume
- 106
- Category
- Article
- ISSN
- 0003-2697
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β¦ Synopsis
Immunoglobulins were labeled via the di-iodinated derivative of methyl-para-hydroxybenzimidate (I). Radioactive iodine could be incorporated at high specific activities without alteration of the overall positive charge or significant inactivation of the antibody activity.
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## Abstract Activated palladium is used as catalyst for the hydrogenβtritium exchange in tricyclic antidepressants. The specific activities obtained are: desipramine: 44.9 Ci/mmol; imipramine: 14.9 Ci/mmol; notriptyline: 2.0 Ci/mmol and amitriptyline: 1.7 Ci/mmol.