The new Quattroflow QB2-Standard (QB2-SD) micropump (photo) is the smallest size in this company’s family of single-use, lightweight and compact rotary microdosing pumps. The pump is designed for precision and can be used to transfer delicate biologic media. The QB2-SD has a minimum resolution of 25 μL and can handle flowrates up to 2.7 L/h, which makes the QB2-SD pump suitable for liquid-handling operations requiring precise dosing of products that can be found in cell and gene therapy, laboratory and other small-scale applications. The positive-displacement pump is lightweight (6.4 g) and compact. These single-use pumps simply click in and out of the motor drive, allowing for quick and cost-effective changeovers with minimal risk of cross-contamination. — PSG Biotech, Oakbrook Terrace, Ill.