b'Cell analysis and imagingConvenient reference slide for Countess 3 and Countess 3 FL Automated Cell CountersThe Invitrogen Countess 3 Standard Slide is a reference slide thatUses and benefits of the Countess 3 Standard Slide:complements the Countess 3 and 3 FL Automated Cell Counters. It is Confirmationuse as a counting and viability standarda ready-to-use slide that contains permanently mounted microspheres in a cell counting chamber. Cell counts from the standard slide Reproduciblepermanently mounted microspheres minimize are consistent from one Countess instrument to the next. Thevariability from one count to the nextmicrospheres mimic the appearance of a 1:1 mixture of live and dead Convenientready-to-use and reusablecells stained with trypan blue solution when counted in brightfield mode (Figure 1). When used in fluorescence mode, the microspheres provide approximately 50% detection with Invitrogen EVOS DAPI and GFP light cubes and approximately 50% detection with Invitrogen EVOS RFP, Texas Red, and Cy5 light cubes.A BFigure 1. (A) Brightfield and (B) fluorescence counts using the Countess 3 Standard Slide each with approximately 50/50 live/dead or blue/red ratios.Ordering informationProduct Cat. No.Countess 3 Standard Slide A51876Discover the benefits at thermofisher.com/countessreference10 Inside the Cell//Issue No. 12Contents '