Endy:Victor3 plate variation
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96 well plates with transparent bases cost ~$4 each. It was unclear if washing plates (bleach, followed by ethanol) led to greater variation in readings.
The GFP and absorbance of every well on a new and a washed plate were measured. The wells were empty.
Histograms of the GFP readings for each plate are shown below.
- The washed plate results in a higher average background reading.
- The washed plate actually results in tighter distribution of readings.
- For most applications, washed plates are perfectly acceptable.