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Samples Digested Utilizing Micro
Digestor
Start-up and Operation
The Labconco RapidStill I is designed to conform with standard Micro Kjeldahl
distillation techniques. The preparation of digested samples, chemical treatment of
the sample prior to distillation and titration techniques following the distillation are
described in the A.O.A.C. Methods of Analysis and other technical references, and
should be referred to in ALL cases.
(1)
Turn on cooling water to the Condenser.
(2)
Turn the Power Switch ON to energize Heater. Check Boiling Flask level
and adjust to 2/3 full if required. Set the Heat Control at "9" on the dial.
Allow steam reservoir water to come to a roll.
(3)
Reduce the Heater Control setting to a desired 4 to 5 ml/min distilling rate,
(refer to Installation Set Up, Initial Test).
(4)
Open the Aspirator Stopcock and aspirate the Mixing Chamber. Close the
stopcock when complete.
(5)
Place the Receiving Flask containing the distillate receiving solution on
Flask Shelf at outlet of the Condenser.
(6)
Check the Sample Addition Stopcock to ensure it is closed. Place entire 4
ml maximum acid digestion sample in Sample Addition Funnel.
(7)
Open the Sample Addition Stopcock slowly to transfer digested sample to
the Mixing Chamber. Close the stopcock.
Product Service 1-800-522-7658
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