Convergent Bioscience has developed a new series of small molecule pI Markers with assigned pI values designed to provide consistent and accurate results. Please contact us at sales@convergentbiosci.com for details on the comprehensive technology we used. Our pI Markers may be used for whole-column and single-point, capillary isoelectric focusing (cIEF) detection to measure a sample’s isoelectric point and to perform quality control of sample analysis. Each pI Marker comes in a vial with 200 mL of stock solution.