Electrochemical detection is commonly used in combination capillary electrophoresis systems. This is a type of hydrodynamic voltammetry called flow injection, where it has been shown that ilim a U1/3, where U is the flow rate of the solution. Flow analysis of a urine sample at a thin-layer amperometric detector, with a flow-rate of 1.25mL/min, yielded a limiting current value of 1.6µA for its unknown uric acid content. A larger current of 2.4µA was observed for a sample containing 1 × 10-4 M uric acid and flowing at a rate of 0.9mL/min. Calculate the original concentration of uric acid in the sample

Electrochemical detection is commonly used in combination capillary electrophoresis systems. This is a type of hydrodynamic voltammetry called flow injection, where it has been shown that ilim a U1/3, where U is the flow rate of the solution. Flow analysis of a urine sample at a thin-layer amperometric detector, with a flow-rate of 1.25mL/min, yielded a limiting current value of 1.6µA for its unknown uric acid content. A larger current of 2.4µA was observed for a sample containing 1 × 10-4 M uric acid and flowing at a rate of 0.9mL/min. Calculate the original concentration of uric acid in the sample

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter25: Voltammetry

Section: Chapter Questions

Problem 25.11QAP

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