Foss Soxtec 1047 User Manual

11. Wash each tube by opening the vacuum
valve and spray 5x50 ml of approximately
50°C distilled water, by using the water
sprayer (Fig. 9).
12. Raise the suction tubes and take out one
of the sample tubes. Cover the cleaning
rod with a thin layer of defatted
cottonwool and wet it with acetone. Clean
the inside of the tubes by gently pushing
and pulling the cleaning rod up and down
in the tube (Fig. 10). Take a small piece
of the cottonwool and clean the outside
of the suction tube if necessary. Place
each pad of the cottonwool on the top of
the sample residue in the glass thimble.
Note: Do not have the valves in closed position when the
Hydrolysing Unit is shut down.
4.4 Drying
To make the wet sample residue lyophilic and
achieve effective solvent extraction, the
residue and thimble must be dried.
Alt. 1: Dry overnight at 60-80°C in a oven.
Alt. 2: Dry in a microwave oven with
turntable at medium power for 30-60
minutes.
Most samples can be dried in a microwave oven,
except meat and fish products.
1
WARNING!
Do not use a microwave oven if residues of organic
solvents are present.
4.5 Solvent extraction
1. Fit the adapters, as written in 4.2:2, to
each thimble and insert them into the Soxtec
HT Extraction Unit.
2. Extract and analyse the samples according
to the Soxtec HT Extraction Unit
instructions, see Soxtec HT manual.
1047 Soxtec System Hydrolyzing Unit, User Manual, Rev. 2.2, Part no 1000 3315, Foss Tecator AB, Sweden
9
1047017A
Fig. 8
1047018A
Fig. 9 Wash the tubes with the sprayer to
suck up the residues of the sample solution.
1047019A
Fig. 10 Clean the tube with the cleaning
rod and defatted cotton.

Foss Soxtec 1047 Specifications

General

Brand	Foss
Model	Soxtec 1047
Category	Laboratory Equipment
Language	English