Thermo Fisher, 4408256, Cathode Buffer Container (CBC), for 3500/SeqStudio™ Flex

Cathode Buffer Container (CBC), for 3500/SeqStudio™ Flex is designed for supplying ready-to-use cathode running buffer and associated fluidic functions for capillary electrophoresis on Applied Biosystems 3500 and SeqStudio Flex series genetic analyzers. The disposable container has two compartments. One compartment provides 1X cathode buffer for electrophoresis, while the second supports capillary washing and collection of spent polymer ejected between injections. An RFID tag integrated into the label allows the instrument to track buffer usage and expiration. The top is heat-sealed with plastic film for shipment and storage, and the seal is removed before installation on the instrument. This package contains four individual cathode buffer containers. The CBC supports sequencing and fragment-analysis runs by maintaining the cathode-side electrolyte and by providing the fluidic space needed between capillary injections. The prefilled format eliminates manual buffer preparation and helps standardize the electrophoresis environment across runs. Store the containers at 2–8 °C until use and follow the expiration date on the package. The buffer is qualified for ambient shipment even though refrigerated storage is recommended after receipt. The second compartment is a functional part of the automated fluidics cycle because it receives waste polymer while also supporting capillary washing between injections. This combined design helps keep routine electrophoresis preparation and waste handling inside a replaceable, instrument-tracked consumable.