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Mean 100 * stdev (cv%) precision – Eppendorf AF2200 Plate Reader User Manual

Page 59

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Maintenance

Eppendorf

®

PlateReader AF2200

English (EN)

59

Pipette 200 μL of 25 nM fluorescein or the blank solution (0.01 M NaOH) into the corresponding wells
according to the plate layout below.

Material/reagents

• 25 nM fluorescein (in 0.01 M NaOH) (fluorescein sodium salt)

• 0.01 M NaOH (=blank solution) (NaOH pellets)

• 96-well plate

• 200 μL pipette with tips

Calculating the precision from one measurement to the next

The result of the formula specifies the precision from one measurement to the next in % CV (coefficient of
variation).

X

25 nM fluorescein

blank

0.01 M NaOH

Mean value

Well A1

Mean RFU value of well A1 over 20 kinetic cycles

Std. deviation

Well A1

Standard deviation of RFU values from well A1 over
the 20 cycles

wellA1

wellA1

mean

100

*

stdev

(CV%)

Precision

=