Objectives
- Analyze DSC data taken on 9/14/2012
- Dilute 20 ppm SO4-2 stock solutions made on 9/19/2012 to be used for atomic absorption calibration
- Dilute to 1ppm, 2ppm, 5ppm, 10ppm, 15ppm
- Prepare a 500mL solution of 1.25g CuSO4 using HPLC grade H2O
- Prepare more glutaraldehyde films
- Prepare a thin PVOH film for use in FTIR
- Run X-Ray diffraction of 2:1 NaMT:Fe2O4 clay dried on 9/19/2012\
- Prepare glutaraldehyde fixant solution
Fixant Solution preparation
- Weigh out 200g Na2SO4 (actually measured out 200.1459g)
- Place in a 2000mL Erlenmyer flask
- Using a graduated cylinder, add 1000mL deionized H2O. Add a large magnetic stir bar to the flask
- Place Erlenmyer flask on a stir plate. Stir until all dissolves
- Add 20mL concentrated H2SO4
- Gently mix solution and using a funnel pour the solution into four 250mL capped bottles
- Note: H2SO4 is highly corrosive. Use extreme caution
Film preparation
- Glutaraldehyde film preparation
The films were prepared following the General Protocol described on2012/09/12
- Prepared films
- 1.000gPVOH MW 22,000+0.8wt% glutaraldehyde
- 0.9499gPVOH MW 22,000+0.8wt% glutaraldehyde+0.052mL PDMS
- 1.002gPVOH MW 22,000+0.8wt% glutaraldehyde
- Calculations for film preparation
*PDMS density=0.97g/mL
5%(1.00gPVOH)=0.95g+0.05gPDMS
0.05g(1mL/0.97g)=0.0515mL PDMS must be added to create 5% replaced PDMS film
- Thin Film preparation
The film was prepared following the General Protocol described on2012/08/29
- Prepared film
- 0.2g PVOH MW 22,000 in a large dish
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