User:Moira M. Esson/Notebook/CHEM-581/2012/10/05: Difference between revisions
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==Objectives== | ==Objectives== | ||
#Crosslink remaining glutaraldehyde films | #Crosslink remaining glutaraldehyde films prepared [[User:Moira_M._Esson/Notebook/CHEM-581/2012/10/03|2012/10/03]] | ||
#Run atomic absorption on CuSO<sub>4</sub> solutions prepared on [[User:Moira_M._Esson/Notebook/CHEM-581/2012/09/26|2012/9/26]] | |||
# | |||
==Crosslinking== | ==Crosslinking== | ||
'''Note''': Films crosslinked on [[User:Moira_M._Esson/Notebook/ | '''Note''': Films crosslinked on [[User:Moira_M._Esson/Notebook/CHEM-581/2012/10/03|2012/10/03]] still remained intact in deionized H<sub>2</sub>O despite using too little glutaraldehyde. | ||
<br> | <br> | ||
The General Protocol for crosslinking Glutaraldehyde films described on [[User:Moira_M._Esson/Notebook/ | The General Protocol for crosslinking Glutaraldehyde films described on [[User:Moira_M._Esson/Notebook/CHEM-581/2012/09/14|2012/09/14]] was used | ||
*Films that were crosslinked | *Films that were crosslinked | ||
#PVOH MW 22,000 1g with 1mL glutaraldehyde(GA)+0.104gNaMT(prepared [[User:Moira_M._Esson/Notebook/ | #PVOH MW 22,000 1g with 1mL glutaraldehyde(GA)+0.104gNaMT(prepared [[User:Moira_M._Esson/Notebook/CHEM-581/2012/10/03|2012/10/03]]) | ||
#PVOH MW 22,000 1g with 1mL GA+0.1022g 100%CEC clay (prepared [[User:Moira_M._Esson/Notebook/ | #PVOH MW 22,000 1g with 1mL GA+0.1022g 100%CEC clay (prepared [[User:Moira_M._Esson/Notebook/CHEM-581/2012/10/03|2012/10/03]]) | ||
#PVOH MW 22,000 1g with 1mL GA+0.100g 50%CEC clay (prepared [[User:Moira_M._Esson/Notebook/ | #PVOH MW 22,000 1g with 1mL GA+0.100g 50%CEC clay (prepared [[User:Moira_M._Esson/Notebook/CHEM-581/2012/10/03|2012/10/03]]) | ||
#PVOH MW 22,000 with 1mL GA | #PVOH MW 22,000 with 1mL GA | ||
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***The yellowish brown color of PVOH 22,000 1g with 1mL GA+100%CEC and PVOH 22,000 1g with 1mL GA+50%CEC lessened and became more of a frosted/whitish color | ***The yellowish brown color of PVOH 22,000 1g with 1mL GA+100%CEC and PVOH 22,000 1g with 1mL GA+50%CEC lessened and became more of a frosted/whitish color | ||
***All films became more rubber like after soaking in solution 1, and then they curled and became stiffer upon drying | ***All films became more rubber like after soaking in solution 1, and then they curled and became stiffer upon drying | ||
==Atomic Absorption== | ==Atomic Absorption== | ||
General Protocol for use of AA-6200 Shimadzu: | General Protocol for use of AA-6200 Shimadzu: | ||
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#Edit calibration curve to make sure it is in ppm and first order | #Edit calibration curve to make sure it is in ppm and first order | ||
#Make sure that the Fuel gas parameter is at 1.8L/min and that the Support gas is at 8L/min | #Make sure that the Fuel gas parameter is at 1.8L/min and that the Support gas is at 8L/min | ||
#Select Next. Then double click on calibration curve, reenter calibration and enter the number of standard solutions created | #Select Next. Then double click on calibration curve, reenter calibration and enter the number of standard solutions created(standards should be entered from lowest concentration to highest concentration). Click OK | ||
# | #Click Next | ||
#Label all samples | |||
#Select "Collect Send" | |||
#Instrument Checklist box will appear. Click all boxes | |||
#Hold the purge button on the machine and make sure that the air and fuel level are at the right level(1,8,8) | |||
#Click line search, close, next, and next | |||
#Click finish. | |||
#Hold the purge and ignite button on the AA until a flame appears | |||
#Allow the sample tube to collect deionized water for autozero. Click autozero | |||
#After autozero is complete, test labeled samples in the order in which they were entered | |||
*Note: Between each sample, allow the sample collecting tube to collect deionized H<sub>2</sub>O until absorption value on the computer screen in close to 0. Then able to collect sample | |||
==AA results from CuSO<sub>4</sub> solutions== | |||
Gold nano particles were clogging the sample collection tube. All results were invalid. The data will be recollected on the next date | |||
Revision as of 07:00, 16 October 2012
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Objectives
CrosslinkingNote: Films crosslinked on 2012/10/03 still remained intact in deionized H2O despite using too little glutaraldehyde.
Note: All GA films were cut in half prior to crosslinking. Remaining uncrosslinked glutaraldehyde films remained under the fume hood
Atomic AbsorptionGeneral Protocol for use of AA-6200 Shimadzu:
AA results from CuSO4 solutionsGold nano particles were clogging the sample collection tube. All results were invalid. The data will be recollected on the next date
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