books.google.com - Flow cytometry is a sensitive and quantitative platform for the measurement of particle fluorescence. In flow cytometry, the particles in a sample flow in single file through a focused laser beam at rates of hundreds to thousands of particles per second. During the time each particle is in the laser...http://books.google.com/books/about/Flow_Cytometry_for_Biotechnology.html?id=IoNFY2D2_tMC&utm_source=gb-gplus-shareFlow Cytometry for Biotechnology