User:Karlena L. Brown/Notebook/PVOH Research/2012/10/19: Difference between revisions
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* Most PVOH 22K glutaldehyde porphyrin films had some amount of porphyrin leach out into various solutions during crosslinking. Many solutions maintained a yellow green / mantis green appearance after the removal of porphyrin films. | * Most PVOH 22K glutaldehyde porphyrin films had some amount of porphyrin leach out into various solutions during crosslinking. Many solutions maintained a yellow green / mantis green appearance after the removal of porphyrin films. | ||
* For this reason, after every switch or movement of a porphyrin film to another solution, a small amount (10mL) of each solution was collected for UV-Vis analysis. After crosslinking, all films were then stored in beakers full of distilled H<sub>2</sub>O. | * For this reason, after every switch or movement of a porphyrin film to another solution, a small amount (10mL) of each solution was collected for UV-Vis analysis. After crosslinking, all films were then stored in beakers full of distilled H<sub>2</sub>O. | ||
* Upon entering the distilled H<sub>2</sub>O, each film reverted back and turned pink in color again (darker pink on edges. | * Upon entering the distilled H<sub>2</sub>O, each film reverted back and turned pink in color again (darker pink on edges). | ||
Revision as of 22:30, 23 November 2012
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OBJECTIVES
New CuSO4 Dilution Standards for Atomic Absorption
(20 ppm CuSO4)V1 = (0.1 ppm CuSO4)(12mL) V1 = 0.6mL of 20 ppm CuSO4
(20 ppm CuSO4)V1 = (0.5 ppm CuSO4)(12mL) V1 = 1.2mL of 20 ppm CuSO4
(20 ppm CuSO4)V1 = (1 ppm CuSO4)(12mL) V1 = 3mL of 20 ppm CuSO4
(20 ppm CuSO4)V1 = (2 ppm CuSO4)(12mL) V1 = 6mL of 20 ppm CuSO4
(20 ppm CuSO4)V1 = (3 ppm CuSO4)(12mL) V1 = 9mL of 20 ppm CuSO4 Using the following concentrations(shown above), a calibration curve was prepared.
Atomic Absorption NaMT-CuSO4 Exchanged Filtrate Solutions
Fixant Solution Preparation
(Actual Na2SO4 Mass: 199.9953g)
Crosslinking Porphyrin FilmsFollow same protocol regarding crosslinking glutaldehyde films 9/21/12; however, pay attention to the two PVOH films that will not be placed in the fixant solution during the crosslinking procedure.
Notes
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