32
Vapodest 45s
7 Create a method (Programming)
M01 Distillation
03min 30s
turn
press
press
M01 Steam power
100%
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press
press
M01 Suction time
Sample 25s
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press
press
6.
Distillation time
The distillation has to be set so that about 100ml
distillate is produced. If the steam output is set
to maximum this corresponds to 3 min 30 s to 4
min. In the water analysis, a phosphate buffer is
used instead of NaOH for the determination of the
ammonium-nitrogen. In such a case, 200 ml have
to be distilled over.
- Setting range 99 min and 59 s
7
.
Steam power
Usually, maximum power is used for the Kjeldahl
analysis. If the power is reduced, the distillation
time is increased at the same time to obtain the
same amount of distillate. For some determinati-
ons, e.g. for the determination of ammonium, a
certain amount of distillate is required for a given
amount of time.
Attention,
when micro glasses with 100 ml are
used, the max. heating power should be 80 %.
- Setting range 30 % - 100 %
8. Suction time sample
If the distilled sample is not longer needed for
further analysis, it can be sucked off using the
built-in tubing pump.
- Setting range 0 - 99 s
