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printout
A sample printout from the Scintillation Counter. We generally re-determine the JH of any sample if the %CV is over 8% (duplicates of 85 and 86, sample 331 needs to be re-determined and is marked so)....
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JH_formula
We use a program (KaleidaGraph, Synergy Software ) to perform a non-linear regression on the standard curve data to get the five parameters (A, B, C, D, and E in the formula shown here) . We use a...
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printout2
The Counter prints averages of each set of duplicates but does not save the average in a file. I had to write a program which would open the file generated by the Counter and then writes the...
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JH_excel
A screen shot of the excel spreadsheet that calculates the JH amount using the five parameters generated by the standard curve, and the DPM data of each sample. The window near the top shows the...
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standardcurve
Here is a screen shot after the non-linear regression is done. Notice the high R-square value (an indication of how well the data points fit the specified curve), which is 0.99947 here. The fitted...
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