Lactate Sensor Experiment Concepts

In this video tutorial, Shan demonstrates how to conduct an experiment using lactate sensors. The tutorial covers the necessary materials, including a lactate sensor, potentiostat, PBS, and lactic acid. Shan explains the setup process using PS Trace software and details the steps to run the experiment, focusing on coroner amperometry. The experiment involves submerging electrodes in PBS, starting a magnetic stirrer, and adding lactic acid to observe the sensor's response. The video concludes with a summary of the results and contact information for further inquiries.

What is the primary equipment needed for the lactate sensor experiment?

• A thermometer and a beaker

• A spectrophotometer and a test tube

• A lactate sensor and a potentiostat

• A pH meter and a magnetic stirrer

Why is it important to use lactic acid instead of sodium lactate in this experiment?

• Sodium lactate is not available

• The experiment won't work with sodium lactate

• Lactic acid is more stable

• Sodium lactate is too expensive

Which software is used to run the lactate sensor experiment?

• LabVIEW

• PS Trace

• ChemStation

• MATLAB

What is the recommended minimum running time for the experiment?

• 300 seconds

• 1200 seconds

• 600 seconds

• 900 seconds

What is the purpose of submerging all three electrodes into the PBS?

• To ensure proper electrical contact

• To cool down the electrodes

• To clean the electrodes

• To calibrate the electrodes

What is the role of the magnetic stirrer in the experiment?

• To stabilize the electrodes

• To measure the solution's pH

• To mix the solution evenly

• To heat the solution

At what time is the lactic acid added to the beaker during the experiment?

• 50 seconds

• 100 seconds

• 150 seconds

• 200 seconds

What is observed on the amperometric curve after adding lactic acid?

• A decrease in current

• No change in the curve

• A spike in the curve

• A gradual increase in current

How long does it typically take for the amperometric curve to stabilize?

• 100 to 300 seconds

• 50 to 150 seconds

• 200 to 400 seconds

• 300 to 500 seconds

What should you do if you have inquiries about the experiment?

• Contact the local library

• Ask a fellow student

• Refer to the user manual

• Visit the company's website