The Cobas c 311 Analyzer is a stand-alone system that offers consolidated testing from a broad menu of clinical chemistry applications. This analyzer has the capacity for ion-selective electrode (ISE) determination of sodium, potassium, and chloride in serum, plasma, and urine. In addition, measurement of HbA1c levels in whole blood can also be performed, making it a truly flexible analyzer. Cobas c 311 continues the tradition of the Roche / Hitachi analyzers specifically Roche / Hitachi 902 and one of the most stable clinical chemistry analyzers ever produced.