ACU-Drop II is a unique, patented packaging form that is revolutionizing quality control in the IVD market with its innovative, dual-chambered device keeping various fractions separated to prevent reactions between components of the desired matrix. This concept is ideal for creating liquid matrices that are as close to human specimens as possible and suitable for quality control, calibration verification, proficiency testing, competency assessment, method validations, and lot comparisons. ACU-Drop II also offers ease of use, eliminating the need for pipetting and solving matrix interactions - all in a single container.