- Porphyrin film which was cross-linked on 19/10/2012 was placed in to a 1% HCL solution with a volume of 100mL.
Part 2: Prepare a porphyrin solution of 50micM
Part 3: UV-Vis
- Combination of 1 ml of salt/acid (50micM), 1 ml of 50 micM of porphyrin and 2 ml of HPLC water.
ISE results for sodium sulfate dilutions
- Dilution 1(1.25ppm)= -180mV
- Dilution 2(2.5ppm)= -182.6mV
- Dilution 3(5ppm) = -182.4mV
- Dilution 4(10ppm )= -177.4mV
- Dilution 5(20ppm)= -174.6mV
- We decided detection limit was between dilution 1 and 2.
- More negative number means less sodium ion in the solution.
- The porphyrin films prepared on 10/10/2012 had a yellowish green color. They were not clear as the other films.
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