Question

Q1. Based upon the figure wirh 10mM concentration, what is the limiting currebt in units of microamps? The limiting current is described by the red bar line.

Q.2 Based upon the figure with 5 mM concebtration, what is the limiting current in units of microamps? The limiting current is labeled by the red bar line.

Q.3 This Question refers back to the previous two questions. If a blank sample (conc. = 0 mM) yielded 0.0 microamps of current duribg the scan, what is the sensitivity of this method in units of microamps per mM? You may need to plot a calibration curve in Excel to answer this question.

Q.4. Based upon the previous 3 questions, what would be the expected limiting current observed for this method when the potassium ferricyanide concentration was 7.5 mM? You can use the best fit line equation from the previous question to help answer this.

Consider the following data trace from a linear scan voltammetry experiment. This scan was obtained for a mechanically stirred 10 mm potassium ferricyanide solution in a supporting electrolyte of 1M potassium nitrate. Based upon this figure, what is the limiting current in units of microamps? The limiting current is described by the red barline. 10 mM conc. i 30 C r 200 iLim 10 m р 0.4 0.2 0 -0.2 -0.4 <Applied Voltage (V, vs. Ag|AgCl) --> 11 200mV CH2 2.00V XY Mod

Answer 1

Ani Limiting wreet: - The Mate of limiting current In Uutuo dyanries is the value limiting The paradic wreet That is approched as The of change Thans fey to an electrode is increased. The Lireiting cument can be approched, by Increasing the Elutuic potential ou deseosing The yate of mass Transfer to Jehode. The 2 current limiting current A potential half wave potential Contrations According to the figuye of lomm I 30 The walue of the limiting wweet ii= 304 creep. V AL 2 foll ST 5mA contiontration :- in 15 laup