Tasks for October 22
- To analyse films in Bisphenol A (BPA)
- To finish film synthesis from Oct. 17
- To finish measuring density of films (Reported on 17/10 Notebook entry)
Completion of film synthesis
Placed film in sodium sulfate, 1% HCl and sodium bicarbonate.
Measuring absorbance of films in PBA
- Soaked PVA-Clay polymer films in 10.4 ppm PBA and allowed to soak for a determined amount of time ( two scintillation vials for each time slot), after which time films were removed to avoid further absorption of PBA.
- 10/22 5 min
- 10/22 15 min
- 10/22 30 min
- 10/22 60 min
- 10/22 120 min
- 10/22 afternoon
- 10/23 morning
- 10/23 afternoon
- 10/24
- Note that the 10.4 ppm PBA solution was made by James and Eleni
- James measured out 10.4 mg of BPA and dissolved in 5 mL of methanol, then diluted to 1 L with distilled water.
| Sample
|
Vial
|
Mass of Empty Vial (g)
|
Mass of Film + Vial (g)
|
Film Mass (g)
|
| GC-MS |
10/22 5 min |
13.0961 |
13.2417
|
|
10/22 15 min |
13.0637 |
13.1933
|
|
10/22 30 min |
13.0670 |
13.2869
|
|
10/22 60 min |
13.0693 |
13.2071
|
|
10/22 120 min |
13.0977 |
13.3447
|
|
10/22 afternoon |
13.0519 |
13.2186
|
|
10/23 morning |
13.0361 |
13.1181
|
|
10/23 afternoon |
13.0016 |
13.1543
|
|
10/24 |
13.0731 |
13.2344
|
| HPLC |
10/22 5 min |
13.0393 |
13.2924
|
|
10/22 15 min |
13.0428 |
13.1814
|
|
10/22 30 min |
13.0879 |
13.3509
|
|
10/22 60 min |
13.1562 |
13.3389
|
|
10/22 120 min |
13.1078 |
13.2840
|
|
10/22 afternoon |
13.0813 g |
13.1784 g
|
|
10/23 morning |
13.1008 g |
13.2877 g
|
|
10/23 afternoon |
13.0785 g |
13.2066 g
|
|
10/24 |
13.0254 g |
13.1791 g
|
|
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