Crystal PBS Buffer is a phosphate buffered saline solution made from reagents with the highest purity and delivered in convenient ready-to-use tablets. Each tablet contains a precise, pre-determined amount of components to make 500ml or 1000ml buffer. There is no need to spend time in the laboratory weighing and handling the loose components for the buffer. Simply dissolve each tablet in 500ml (BIO-37107) or 1000ml (BIO-37108) deionized water and the buffer is ready to use without any further preparation. Bioline Crystal buffers undergo extensive and stringent QC assays and the guaranteed batch-to-batch reproducibility provides consistent results. One tablet of Crystal PBS Buffer dissolved in 500ml or 1000ml deionized water yields a solution containing 0.01M phosphate, 0.0027M potassium chloride and 0.14M sodium chloride with pH 7.4 at 25°C.