Thermo Fisher, Q33252, Qubit™ Flex Assay Tube Strips

Invitrogen Qubit Flex Assay Tube Strips are low-fluorescence sample containers for use with the Qubit Flex Fluorometer. Each strip consists of eight clear, thin-walled polypropylene tubes, each with a 200 µL nominal capacity. The strip geometry allows multiple prepared assays to be loaded together in the fluorometer's sample chamber and supports the instrument's multichannel workflow. Low background fluorescence helps preserve measurement sensitivity when using compatible Qubit nucleic-acid or protein quantification assays. The strip is a consumable sample holder, not a fluorescence dye, calibration standard or assay reagent. Sample preparation must still follow the requirements of the selected Qubit assay, including the correct working solution, sample-to-reagent ratio and incubation interval. Avoid air bubbles, fingerprints and contamination that can interfere with optical readings. Unused tubes should be handled with clean gloves and kept protected from laboratory debris. This packaging contains 125 eight-tube strips, corresponding to 1,000 individual tube positions.