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A flow-injection method for determination of dipyrone (novalgin, metamizol) in pharmaceutical tablets with biamperometric detection is described. Flow-parameters such as flow rate, coil length and sample injection volume were optimized. The calibration graph was linear (r=0.9997) within the range of 10-50 mg l -1 in a 1-mmol l -1 HCl carrier solution for an applied potential...