User:Tamanika Tinsley/Notebook/Chem 581 Biomaterials Design Lab/2014/09/24
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Sept 24 - AA analysis of As samples
Objective from Dr. Hartings lab notebook Dr. Hartings' Notebook
The original objective were modified, because the Arsenic lamp for the AA was burnt out. The new goal for the class was to set up an experiment with the PVA and PVA with clay films using Rhodamine 6G. This experiment will determine how well the films can filter out fluorescent contaminations from water. The stock solution of Rhodamine 6G was at 159 micromoles. The concentrations for the standards are 1, 10, and 20 micromoles.
Notes on the start of the synthesis of films with cation exchanged clay
Today we made films using the cation exchange clays begun on September 10. One of the films was made using the tributylhexadecylphosphonium bromide that our group started on 9/10 and the other was made using (1-hexadecyl)triphenylphosphonium bromide that Eleni's group started synthesizing on 9/10.
Our cation exchanged clays were made as follows:
The solutions were prepared by Eleni Kalivas
Experiments were also set up using the three concentrations of RG6 with just glass vials, to determine if any fluorescents is absorbed into the glass.