6 | Operation
BÜCHI Labortechnik AG
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Operation Manual HydrolEx H-506
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Put 2 g Celite® 545 into the hydrolysis vessel.
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Weigh-in sample.
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Add 50 mL 4 M HCl and mix the sample with the
Celite® and the HCl.
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Rinse the walls of the hydrolysis vessel with 50 mL, 4 M
HCl.
NOTE
Use quartz sand with a grain size of 0.3 - 0.9 mm.
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In case the grain size is too small it will clog the frit of the glass sample tube.
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In case the grain size is too large the Celite® will pass through the frit of the sam-
ple tube during filtration.
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Apply approx. 20 g quartz sand equally in the glass
sample tube.
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Add a layer of 2 g Celite® 545 in the glass sample tube.
