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77 ApplicationsApplications
Buffer solution preparation (Preparing Buffer
Solutions) (W-AD/ W Series only)
It is possible to prepare buffer solutions in accordance with pre-registered recipes.
Buffer solution preparation (Preparing Buffer Solutions)
1. Set the Buffer solution preparation mode
(1) Press [ MENU] and then [ LEFT] on the
weight display.
(2) Select [
Mode Selection] and then press
[ OK].
(3) Select [Buffer solution preparation] and then press [ OK].
2. Select the registered buffer solution (recipe)
(1) Select the required buffer solution from the list
of registered buffer solutions (recipes) displayed,
and then press [ OK]. [Press [ OK] to move
across to [4. Enter Formation Volumes] screen.
3. Set the permissible error range
(1) Press [ MENU] on the formulation setting
screen to display the permissible weighing error
screen.
(2) Press [ OK] to display the permissible error
setting screen, and then enter the values between
a range of 0.0001g and 9.9999g.
(3) Press [ OK] to return to the permissible
weighing error screen.
(4) Press [ MENU] to return to the formulation
setting screen.
The pre-registered buffer solution (recipe) list contains the thirteen types listed below.
No. Buffer Solution List
1 100mM phosphoric acid (sodium) buffer solution pH2.1
2 10mM phosphoric acid (sodium) buffer solution pH2.6
3 50mM phosphoric acid (sodium) buffer solution pH2.8
4 100mM phosphoric acid (sodium) buffer solution pH6.8
5 10mM phosphoric acid (sodium) buffer solution pH6.9
6 20mM sodium citrate buffer solution pH3.1
7 20mM sodium citrate buffer solution pH4.6
8 10mM sodium tartrate buffer solution pH2.9
9 10mM sodium tartrate buffer solution pH4.2
10 20mM acetic acid ethanolamine buffer solution pH9.6
11 100mM sodium acetate buffer solution pH4.7
12 100mM potassium borate buffer solution pH9.1
13 100mM sodium borate buffer solution pH9.1
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