Dirty cells and piping may cause phenomena such as an unstable
baseline or a large baseline noise due to pulsation
of
the solvent
delivery pump.
In
this
case, clean the flow lines with the following
procedures.
Item
to
be
prepared
Syringe
oty
1
I
Adapter
111
I
Water
Il~I
I
Acetone
I
5OmL
I
I
0.1N
nitric
acid
I
5OmL
I
I
-
Mixing nitric acid with organic solvent may
form
an explosive
substance. Be extremely careful when handling
mitric acid.
Deliver acetone from the inlet port using the syringe and
adapter. During supply, turn the Mow
on(*)
to deliver
solvent to the reference side.
(*)
The state in which Mow lamp is
lit
when
@
and
Use distilled water to flush the flow lines as in step
1.
Flush the flow lies with
0.1N
nitric acid.
Flush out the nitric acid with distilled water.
Replace with mobile phase. When the mobile phase used for
analysis is not miscible with water, replace the flow lines
with acetone and replace
it
with the mobile phase.
(Rflow)
ispmsxi
8
-
2
-
RID
-
1OA
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