Difference between revisions of "User:Mary Mendoza/Notebook/CHEM572 Exp. Biological Chemistry II/2013/02/20"

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(ADA Kinetic Assay for obtaining the zero point)
(Aspirin concentration for ADA Kinetic Assay)
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==Aspirin concentration for ADA Kinetic Assay==
 
==Aspirin concentration for ADA Kinetic Assay==
 +
* The assay for the concentrations below will be conducted next laboratory period.
  
 
[[Image:Screen_Shot_2013-02-19_at_1.13.00_PM.png|center]]
 
[[Image:Screen_Shot_2013-02-19_at_1.13.00_PM.png|center]]

Revision as of 11:29, 22 February 2013

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Aspirin concentration for ADA Kinetic Assay

  • The assay for the concentrations below will be conducted next laboratory period.
Screen Shot 2013-02-19 at 1.13.00 PM.png

ADA Kinetic Assay for obtaining the zero point

  • The objective of this laboratory period is to conduct adenosine deaminase (ADA) kinetic assay runs for the new calculated concentrations.
  • UV 2550 Shimadzu spectrophotometer was baseline with 0.05 M sodium phosphate buffer.
  • The assays were prepared according to the data below.
Screen Shot 2013-02-19 at 2.46.05 PM.png
  • After running the first trial, it was observed that the absorbance for 12.34 μM adenosine of trial 2 was superimposed over the 10.52 μM adenosine of trial 1.
  • It was suggested by Dr. Hartings to use Beer's Law for accurate measurement of the concentration of adenosine in solution.
  • An article was provided by Dr. Hartings with the molar extinction coefficient, 1.53 x 10-4 of adenosine at 260 nm.
  • Thus, it was decided to run a full spectrum of adenosine at each given concentration specified above for accurate measurement of the concentration of adenosine.

Data

Concen1.png


AveVelo1.png


1adeno.png


Lin1.png


UV2.20.png