The liquid ready-to-use reagents in barcoded cartridges are meant for use on Beckman Synchron CX, DX and LX chemistry analyzers, and Olympus AU400, AU480, AU640, AU680, AU2700, and AU5800 chemistry analyzers. The cartridged reagents use the most advanced formulations and eliminate reagent preparation, thus saving time, removing error and resulting in laboratory savings in reagent costs.