User:Puja Mody/Notebook/Magnetite Shenanigans/2014/09/23: Difference between revisions

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Latest revision as of 00:20, 27 September 2017

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Dye Addition trial 2

  • New samples with dye addition were made due to issues with UV-Vis previously experienced. A more dilute stock solution of R6G was made so that moresubstantial amounts of R6G could be added into the samples.
  • The total amount of sample needed was 1.5mL (both magnetite and dye)

Table 1: .001M R6G stock preparation in Methanol

stock concentration (M) 0.003987
desired total volume (L) 0.01
desired new concentration 0.001
amount of R6G to be added (L) 0.002508151
amt. methanol to be added (L) 0.007491849

Table 2: Amount of dye added into each sample to achieve desired internal concentration

sample number desired concentration of dye in each sample volume of dye added (L) in mL in uL volume of magnetite sample added (mL)
1 0.00002 0.00003 0.03 30 1.47
2 0.00004 0.00006 0.06 60 1.44
3 0.00006 0.00009 0.09 90 1.41
4 0.00008 0.00012 0.12 120 1.38
5 0.0001 0.00015 0.15 150 1.35
6 0.00015 0.000225 0.225 225 1.275
7 0.0002 0.0003 0.3 300 1.2



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