How to use Polarograph correctly

The polarograph is an instrument for inorganic ion analysis. It analyzes and quantitatively analyzes the content of different ions in the electrolyte solution according to the current-voltage curve obtained when the material is electrolyzed. It is used in geology, metallurgy, and soil industries. Has a great role, then how does polarography operate?

1. Turn on the power, turn on the polarizer mercury electrode switch, and then turn on the host computer to start the operation;

2, double-click the software "AD-3.exe" logo, open the software to operate;

3, "MCP" function selection 1, analog scanning method (ASP), parameter settings in accordance with the default settings or conditions required to set and adjust, and then click OK button to operate;

4. Next, place the blank and the standard solution from bottom to top in order on the polarograph workstation. (Note: When measuring the standard solution, test the sensitivity of the maximum concentration of the standard solution first). Click the "Run" button for each cup of solution, and a corresponding curve will appear on the screen. Then click the "Search Peak" button, and then capture the two points closest to the measured element's potential (ie crests and troughs) on the curve. Right-click again, select "work curve method", then select "element one" to save;

5. After the blank and standard solution have been measured, click “Curve Analysis” and then select “Element One” in the “Substance” option (in this case, the previously measured standard peak height will be displayed automatically), and then at the peak height Fill in the corresponding standard solution before, and finally, click the “Calculate” button. The straight line from the standard solution will be displayed on the screen.

6. Next, press the "Back" key, then measure the unknown solution according to the method of measurement standard, calculate the concentration, and save, or print the results.

7. Press “Exit” to exit the system interface, turn off the polarizer mercury electrode switch, turn off the computer, and turn off the power.

8, cleaning equipment and work stations, fill in equipment and equipment records and maintenance schedule records, each record about the equipment must form a ledger.

The above is the correct use of the polarograph. In addition, the advantages of the polarograph are obvious. The scope of analysis ranges from inorganics to organics, from trace amounts to constants, and the price is moderate. It is particularly suitable for analysis and inspection in basic laboratories.