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Since the first laser was mounted to create the first flow cytometer, there has been a push for more – more lasers, more detectors, more colors. As a result, today’s researchers require a large number of lasers and detectors to ensure current panels can be run and new, expanded panels can be developed. This can be problematic because, in general, making one decision to improve a cell analyzer can limit the analyzer in other ways. It may seem like an impossible task, but the team of Bio-Rad and Propel Laboratories, collaborated to bring the ZE5™ Cell Analyzer to the market and, with thoughtful design, the Analyzer answers these challenges, resulting in a high-end, easy to use, automated flow cytometer.

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We hope this explanation sheds some light on scaling. Knowing how to properly display your data is a critical part of scientific communication. Remember to use linear scaling for most scatter parameters, or when you need to visualize small changes, and log scaling for most fluorescence parameters, or when you need to visualize a wide range of values. As always in flow cytometry, there are certainly exceptions, but armed with this knowledge, you should be able to make educated judgements about which scale types to use in various assays and to better interpret your data.

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There are several areas that researchers can focus on to improve the reproducibility of their flow cytometry experiments. From instrument quality control, through validation of reagents, to reporting out the findings, a little effort will go a long way to ensure that flow cytometry data is robust, reproducible, and accurately reported to the greater scientific community. Initiatives by ISAC have further offered additional levels of standards to support these initiatives, which were developed even before the Reproducibility Crisis came to a head in both scientific and popular literature.

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