Mass Spectrometer (IMAGE) American Chemical Society Caption The Desorption Electrospray Ionization Mass Spectrometer could screen for counterfeit drugs, such as fake Tamiflu, up to 20 times faster than current methods. Credit Courtesy of Leonard Nyadong 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.