LDS Sample Buffer (4X) - RunBlue™ (Bis-Tris) (ab270226) has been specifically formulated for use with Bis-Tris RunBlue™ gels to provide the best running conditions and results. The ions in the sample buffer match the gel buffer and the buffer has a higher density, making it compatible with the density of the running buffer. The buffer contains two tracking dyes. The red dye is designed to monitor the pH of the buffer. A color change from red to yellow indicates a shift in pH indicating that the buffer was poorly made or recycled too many times.

LDS Sample Buffer (4X) - RunBlue™ (Bis-Tris) (ab270226) should be used to prepare all samples for running on Bis-Tris Precast Gels - RunBlue™.

This product is manufactured by Expedeon, an Abcam company. It was previously called RunBlue LDS Sample Buffer - 10ml (4X Concentrate) for Bis-Tris gels. Expedeon product code NXB32010 is the same as the 10 mL size of this product.

Please note that for TEO-Tricine Precast Gels – RunBlue™ we recommend using LDS Sample Buffer (4X) - RunBlue™ (TEO-Tricine) (ab119196).