1.5 Proteinanalytik
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The antibody A.1.1.1 was labeled and found to be very sensitive and highly selective for TNT. A novel monolithic affinity column was coated with a Trinitroaniline (TNA)-BSA affinity conjugate and a custom laser induced fluorescence detector were built to allow for continuous and sensitive detection. The affinity column combined with the high sensitivity detector resulted in a limit of detection of approx. 100 pM TNT or 20 ppt TNT for offline detection and was able to detect picogram amounts within three minutes.