WEBIntroduction to Flow Cytometry. Principles. Data analysis. Protocols. Troubleshooting. By Misha Rahman, Ph.D. Technical advisors. Andy Lane, Ph.D. Angie Swindell, M.Sc. Sarah Bartram, B.Sc. Preface. How can I explain what flow cytometry is to someone that knows nothing about it? Well, imagine it to be a lot like visiting a supermarket.