Bio-Rad SmartSpec Plus Spectrophotometer User Manual
Page 25
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Press A260:A280 to see the ratio displayed
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For DNA oligos and RNA oligos, press Conc to see the concentration displayed in
units of pmoles/µl.
•
To read the next sample, insert the cuvette in the chamber and press Read Sample.
From any of the above screens you can press Enter to return to the Ready screen.
B. Protein. Immediately after the sample is read, the data are displayed in the form
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To read the next sample, insert the cuvette in the chamber and press Read Sample.
From any of the above screens you can press Enter to return to the Ready screen.
The available options from the Ready screen are Change next sample number and
Change number of sample replicates.
C. Scan. Immediately after the absorbances are calculated the screen will display the
message
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Press Print to begin printing the scan. If you do not want to print the scan, press
Cancel. From this screen, you can press the left arrow key to select nm scale and
direct SmartSpec Plus to print only a subset of the data collected.
You can also change the minimum and maximum values on the AU scale, by pressing
the right arrow key.
•
Enter the lower limit. If you want the lower limit to be a negative value, enter the
absolute value of the lower limit and press Enter and then press Select. For example,
if you want the lower limit to be -0.500, press the decimal key and the 5 key and
then Enter. The display will show
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Min AU scale: +/-
0.500
Max AU scale:
Begin scanning at ____ nm
End scanning at ____ nm
Min AU scale:
Max AU scale:
Press <Print> when ready
<=nm scale >=AU scale
Ready to Read absorbance
<=Exit Assay >=Options
A260= x.xxx A280= x.xxx
A260:A280 = x.xxxx
A260= x.xxx Samp #1
Conc= xxx.xxx pmoles/µl
Ready to Read Absorbance
<=Exit Assay >=Options
A595= x.xxx Samp #1
Conc= xxx.xxx µg/ml