ASSURANCE
GDS®
PPMX
USER
MANUAL
32
Appendix
E
Pipette
Verification
When
neccesary,
the
following
procedure
can
be
used
to
verify
PPMX
pipette
head
performance:
1.
Select
“Run
a
protocol”
Select
R
–
Standard
Low
Micro
Calibration
Verification
protocol
2.
Enter
8
samples
3.
Weigh
2
empty
GDS
Sample
Bases
with
one
sample
well
strip
each
and
1
GDS
Resuspension
Plate
prior
to
start
and
record
weight
4.
Load
removable
tray
with
disposables
according
to
PPMX
Step
‐
by
‐
step
wizard
5.
Enter
correct
number
of
missing
tips
if
not
using
a
full
rack
6.
Vortex
Concentration
Reagent
and
remove
cap
prior
to
adding
bottle
to
the
GDS
Reagent
Holder
7.
Add
correct
volume
of
Wash
Solution
and
Resuspension
Buffer
to
reagent
reservoir
8.
Select
“Run
protocol”
9.
Select
“Skip”
when
asked
to
simulate
10.
Select
“Continue”
to
prompt
11.
When
run
is
completed,
weigh
both
filled
GDS
Sample
Bases
and
the
filled
GDS
Resuspension
Plate
and
record
weight
NOTE:
The
protocol
will
fill
the
CR
and
Resuspension
Buffer
5x
the
standard
amount,
the
wash
1x
(this
is
the
reason
for
the
different
calculations
below).
12.
Complete
the
following
calculation
for
the
Concentration
Reagent
&
Resuspension
Buffer:
(
FP
–
DP
)
/
40
wells
=
______________
x
1000
=
__________
µL
13.
Complete
the
following
calculation
for
the
Wash
Solution:
(
FP
–
DP
)
/
8
wells
=
______________
x
1000
=
__________
µL
Dry
Plate
(DP)
Weight
of
Sample
Blocks/Resuspension
Plate
Concentration
Reagent
g
Wash
Solution
g
RS
Plate
Resuspension
Buffer
g
Filled
Plate
(FP)
Weight
of
Sample
Blocks/Resuspension
Plate
Concentration
Reagent
g
Wash
Solution
g
RS
Plate
Resuspension
Buffer
g
Pipette
should
deliver
20
±
1
µL
for
Concentration
Reagent,
1000
±
20
µL
for
Wash
Solution,
and
45
±
2
µL
for
Resuspension
Buffer.
Concentration
Reagent
__________
µL
Wash
Solution
__________
µL
Resuspension
Buffer
__________
µL