Flow cytometers

Flow cytometers are instruments that measure the physical and chemical characteristics of cells or particles suspended in a fluid stream as they pass single-file through one or more laser beams. The technique counts cells, measures their size and granularity, and reads fluorescent markers bound to specific molecules, producing a multiparameter profile of a population one cell at a time. Across the Questpair catalogue, 736 laboratory listings span new, used and refurbished units from 18 verified suppliers and distributors in 9 countries. Of those listings, 100 percent are used. Prices run from EUR 18 to EUR 159.265, a spread that separates bare analysers from complete sorting systems.