QuadPyre Device (IMAGE) University of South Florida (USF Health) Caption The QuadPyre RT-NASBA rapidly and inexpensively evaluates the authenticity of seafood. The instrument assays seafood samples using real-time nucleic acid sequence-based amplification (RT-NASBA). The handheld instrument that purifies and identifies the sample's RNA is a portable version of the lab-based benchtop model previously developed. Credit University of South Florida Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.