Qiagen QIAcuity 911000 User Manual page 197

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Analyze section with 2 Replicate groups (A11, B11) and (A12, B12).
Replicates are analyzed as separate wells but in addition the mean concentration value and the CI
value of the mean concentration are provided on demand.
On the right side above the table there is a checkbox, which allows the user to show mean values
for replicates in addition. By default, the button is unchecked, and results are displayed without
mean values. When the button is checked the list still shows independent rows for each selected
well, but replicates are grouped together. Replicates from the same group are next to each other in
the list view. There are two additional columns indicating the mean values:
Mean concentration
Mean concentration for replicates is calculated as an average, i.e., the sum of concentrations
multiplied with well-specific cycled volume of selected wells divided by the multiplication count of
selected wells with the sum of cycled volumes.
����� ( 1 ) ∗ ���� ( 1 ) + ���� ( 2 ) ∗ ���� ( 2 ) �
������������������������ ���� ������������ ���������������� ���������������������������� ���� �������� ���� ���� ���� (�������� ������������ µ����)) �������� 2 ���������������� ���� ���� �������� ���� ���� =
(���� ( 1 ) + ���� ( 2 ) )
( 6278 ∗ 2.889 + 6411 ∗ 2.773 )
������������������������ ���� ������������ ���������������� ���������������������������� ���� �������� ���� ���� ���� ( �������� ������������ µ���� ) �������� 2 ���������������� ���� ���� �������� ���� ���� =
( 2.889 + 2.773 )
= 6343 �������� ������������ µ����
CI (95%) — CI of mean concentration assumes that error between individual results has normal
z
n
distribution.
is defined as 1.96.
= sample size (amount of replicates).
����
�������� ������������ ���������������� ���� ���� �������� ���� ���� = �������� ���� �������������������� ���������������� ���� ���� ���� ���� ���� ∗ ���� ÷ √
���������������� ���������������������������� ���� �������� ���� ���� ���� �������� ���������������� ���� ���� �������� ���� ����
QIAcuity User Manual 06/2022
197

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