| Specificity | Using a conjugate choline-glutaric acid-Protein, antibody specificity was performed with an ELISA test by competition experiments with the following compounds:
| Compounds | Cross-reactivity ratio* | | Choline-GA-PL | 1 | | Choline-allyl alcohol-G-BSA | 1/2 | | Phosphatidylcholine | 1/>10,000 | | free Choline | 1/>10,000 | | free Acetylcholine | 1/>10,000 |
*Choline-GA-BSA concentration /unconjugated or conjugated analogs concentration at half displacement.
GA: Glutaric anhydride, BSA: Bovine Serum Albumin.
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