User:Samiye Yaman/Notebook/Lab 581/2013/03/22: Difference between revisions
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==Description== | ==Description== | ||
''' | '''Preparing hydrogels for pH analysis''' | ||
*Add 1.5ml of water in to a epitest tube with 2mg hydrogel. | *Add 1.5ml of water in to a epitest tube with 2mg hydrogel. | ||
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*Prepare 2 more hydrogel solutions (with 1.5 water and 2mg hydrogel) with 55 μL methyl red and 30μL bromophenol blue. | *Prepare 2 more hydrogel solutions (with 1.5 water and 2mg hydrogel) with 55 μL methyl red and 30μL bromophenol blue. | ||
'''Info on indicators''' | |||
methyl violet 0-2 | |||
methyl red- 4.4-6.2 | |||
bromocresol purple- 5.2-6.8 | |||
bromophenol blue 6.0-7.6 | |||
cresol red 7.2-8.8 | |||
phenolphthalein- 8.3-10.0 | |||
==Data== | ==Data== | ||
[[Image:Crystal_violet_leakage.png]] | |||
==Notes== | ==Notes== |
Revision as of 14:16, 6 April 2013
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ObjectiveDescriptionPreparing hydrogels for pH analysis
Info on indicators methyl violet 0-2 methyl red- 4.4-6.2 bromocresol purple- 5.2-6.8 bromophenol blue 6.0-7.6 cresol red 7.2-8.8 phenolphthalein- 8.3-10.0 DataNotes |