Out of the 13 tests taken at each of the 4 sites, 4 tests will be chosen to compare and contrast the difference in values and reasoning behind those sites. Potassium ion, calcium ion, conductivity, and dissolved oxygen will be compared from Lake Mary, Colorado River Float, Lake Powell Marina, and Lake Powell Swimming locations. These 4 tests will be compared as it takes into account three popular ions found in most bodies of water (salt, calcium, and potassium), as well as the oxygen levels which is one of the most important factors to marine life.
For the potassium ion test, the probe must first be calibrated. To calibrate the potassium ion probe to a LabQuest tablet, first soak the membrane of the probe in the High Standard solution. Then …show more content…
To calibrate, soak the electrode membrane into a High Standard solution for at least 24 hours prior. Then enter 1000 mg/L as the concentration for ‘reading 1’. When the value stabilizes hit ‘keep’ as it will save the max concentration. Next, remove from High to Low Standard solution and set ‘reading 2’ as 10 mg/L when the value stabilizes. After calibrating, remove the probe and rinse with distilled water, and blot with a paper towel. Dip the electrode membrane into desired testing solution and wait for the value to stabilize. This test, like the potassium ion, is calculating how many calcium ions are present in the solution related to the High and Low Standard solutions of pure calcium (“Calcium Ion-Selective Electrode.” O2 Gas …show more content…
There is nearly a linear correlation between conductivity and concentration of salt or other specific ions. In theory, the conductivity probe is measuring the concentration of those specific ions and their ability to produce an electric current between two electrodes. As the concentration of a specific ion increases so does conductivity. For most experiments, calibrating the conductivity probe is not required. Before using the probe set the range based on µS/cm. In (µS/cm) range 0-200 for low range, 0-2,000 for mid-range, 0-20,000 for high range. Rinse probes membrane with distilled water and slowly insert into desired testing solution and wait for the value to stabilize (“Conductivity Probe.” O2 Gas
For the potassium ion test, the probe must first be calibrated. To calibrate the potassium ion probe to a LabQuest tablet, first soak the membrane of the probe in the High Standard solution. Then …show more content…
To calibrate, soak the electrode membrane into a High Standard solution for at least 24 hours prior. Then enter 1000 mg/L as the concentration for ‘reading 1’. When the value stabilizes hit ‘keep’ as it will save the max concentration. Next, remove from High to Low Standard solution and set ‘reading 2’ as 10 mg/L when the value stabilizes. After calibrating, remove the probe and rinse with distilled water, and blot with a paper towel. Dip the electrode membrane into desired testing solution and wait for the value to stabilize. This test, like the potassium ion, is calculating how many calcium ions are present in the solution related to the High and Low Standard solutions of pure calcium (“Calcium Ion-Selective Electrode.” O2 Gas …show more content…
There is nearly a linear correlation between conductivity and concentration of salt or other specific ions. In theory, the conductivity probe is measuring the concentration of those specific ions and their ability to produce an electric current between two electrodes. As the concentration of a specific ion increases so does conductivity. For most experiments, calibrating the conductivity probe is not required. Before using the probe set the range based on µS/cm. In (µS/cm) range 0-200 for low range, 0-2,000 for mid-range, 0-20,000 for high range. Rinse probes membrane with distilled water and slowly insert into desired testing solution and wait for the value to stabilize (“Conductivity Probe.” O2 Gas