ch 10

Question 1

Voltammetry/Amperometry define process

Diff between Voltammertry and Amperometry

Answer 1

based on electrolytic electrochemical cells external voltage is applied to electrode current of cells = concentration of analyze present
A has a fixed voltage and is more sensitive and limits current plateau in voltammagram

Question 2

non steady vs steady state Voltammetry

conductometry define and why is it used

Answer 2

steady state measures voltammary when solution is stirred and unsteady it is left motionless
revels the quality of n analte in a mixture
Used in counting blood cells in suspension and measure hematocrit

Question 3

conductometry
how is it used
coulometry
application of faradays law

Answer 3

revels the quality of an analyte in a mixture
used in counting blood cells in suspension and erthyrocyte studied –> measures hematocrit
measure of electrical charge passing b/w two electrodes in electrochemical cell –> number of coulombs passing through cell=amount of electrolyte substance

Question 4

coulometry what does it determine
what are adv. and disadv.
used to measure ph, blood gases, and electrolytes

Answer 4

determine chlored in blood plasma and serum
adv. most accurate electrochemical tequ. considered gold standard for chloride disv. was prone to interference
optical chemical sensors

Question 5

any analytical device which is capable of converting biochemical response into electrical signal
uses _____ in glucose monitoring test strip
affinity sensor

Answer 5

biosensors
Amperometry
DNA anaysis using electrochemical label

Question 6

potentiometry
name uses
what are three types of electrodes

Answer 6

measurement of electrical potential difference between electrode in electrochemical cell

• used for measurement of ph, po2, electrolyte in whole blood, serum, plasma and urine
• redox, ion-selective membrane,and po2 gas sensing