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TECATOR Soxtec System Manual
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TECATOR Soxtec System Manual

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Summary of Contents for TECATOR Soxtec System

  • Page 2 • > * - Fat determination by solvent extraction tecator with Soxtec System Fix thimbles into Fix weighed extrac- Sample prepa- weigh sample into Drying extraction unit tion cups into Ex- ration(milling, thimble(Wi) of samples traction Unit. homogenization etc.) nnnonn...
  • Page 3 Soxtec System...
  • Page 4 INTRODUCTION UNPACKINGAND CHECKING INSTALLATION 1 1 1 : 1 CONNECTION FUNCTION IV:1 1040 EXTRACTION UNIT IV:2 1041 SERVICE UNIT IV:3 EXTRACTION CUPS AND CUP HOLDER IV:4 THIMBLE AND THIMBLE ADAPTERS IV:5 THIMBLE SUPPORT WITH HOLDER AND THIMBLE STAND IV:6 THIMBLE HANDLER AND TONGS FOR EXTRACTION CUPS PREPARATION OF SAMPLE OPERATION...
  • Page 5 The SOXTEC SYSTEM is designed to replace and improve the traditional organic solvent methods. Still based on the tradi- tional Soxhlet procedure the patented design of the SOXTEC...

  • Page 6: Unpacking And Checking

    UNPACKING AND CHECKING Unpack the SOXTEC SYSTEM and its accessories with care. Remove all packing material. Use the packing list in this ma- nual or the one you find packed together with the unit, and check that you have received all parts. If any part is missing, contact your Tecator representative.
  • Page 7 Fig.A Fig.A:2 Fig.A:1...

  • Page 8: Installation

    INSTALLATION Place the units on a laboratory bench. Depending on the sol- vent you are going to use, the Extraction Unit might be locat- ed in a fume cupboard separated from the Service Unit. As an alternative there is a connection on the rear of the Ex- traction Unit which can be connected via fiexibie tubing to a ventilation fan.
  • Page 9 When the Extraction Unit and Service Unit are connected, fill distilled (or deionized) water into the tank in the Service Unit (Fig. D). As soon as the element in the tank is covered with water (ca 2 I), plug into the wall socket (208/240 V, 50/60 Hz, 10 A) and switch on "MAINS".
  • Page 10 FUNCTION The SOXTEC SYSTEM com- prises: — 1040 Extraction Unit — 1041 Service Unit — Extraction Cups — Cup Holders — Tongsfor extraction cups — Thimble Supports — Hoider for thimble sup- ports — Thimbles — Thimble Adapters — Thimble Handler —...
  • Page 12 IV:4. THIMBLE AND THIMBLE ADAPTERS Standard size of thimbles is 0 26 mm and length 60 mm. Thimble adapters for other thimbles are also available (0 22 mm, length 50 mm; part no: 1000-1486). IV:5. THIMBLE SUPPORT WITH HOLDER AND THIMBLE STAND Six thimble supports are fastened in the holder.

  • Page 13: Operation

    OPERATION V:1. PREPARATION OF SAMPLE Samples must be ground or homogenized before weighed in- to the thimbles. Some types of samples e.g. meat, should be mixed with sand or asbestos. Follow the same procedure as for traditional Soxhlet. V:2. STARTING UP A) Check water level in the Service Unit (should be a few cms below the edge of the tank).
  • Page 14 per position (full counter clock-wise) so that the conden- sing solvent can reflux back into the cups (Fig. M). k) Move the extraction mode knobs to RINSING. The thimb- les will now hang above the solvent surf ace and any fat residues will be rinsed out.

  • Page 15: Maintenance And Service

    MAINTENANCE AND SERVICE Vl:1. SERVICE UNIT (general for all work inside the Service Unit) a) Take out electrical plug from wall socket. b) Unscrew the four screws (two on each long side) and lift up the cover (Fig. Q and R, pos. 2). Vl:2.
  • Page 17 Explanation of symbols in Remove the cable connections. Fig.R g) Remove the nuts holding the element (Fig. R, pos. 14). 1. Tubing clampscrews h) Replace the element (Fig. R, pos. 15). Make sure that the 2. Screws for cover sealings are inside the tank. 3.
  • Page 18 Vl:6. REPLACEMENT OF CONDENSER (complete) a) Raise all extraction mode knobs to middle position in the orange area. b) Unscrew the three screws holding the front panel and gently pull the panel down. The six slides will come out from their plastic rails (Fig. T, pos. 1). c) Remove the two nuts from the top plate (Fig.
  • Page 19 Explanation of symbols Knob on recovery rod Upper condenser holder Flexiblewire Recovery tube Curved tube Magnetwith holding mechanism Sealing membrane Plastic rail forslide Slide Extraction mode Knob.
  • Page 20 e) Put the teflon tubing into the hole, so it enters about 1 mm inside the rubber sleeve. It might be necessary to use a pin to clear the hole in the rubber part. Put the new sleeve on place and replace the condenser. Run a blank to get rid of deposits.
  • Page 21 TROUBLE-SHOOTING SCHEME Vll:1. FUNCTIONALTROUBLESHOOTING SCHEME Corrective Measure Probable Cause Fault 1. Nocurrentto the pump Connect the cable. Switch on A. The waterpump does not Mains start B. The hotplates do not 1. Too low temperature in Screw the thermostat clockwise heat up tank (Check temperature with a ther-...
  • Page 22 ELECTRICAL DIAGRAM 1041 Service Unit SWITCH AIRPUMP WATERPUMP 200—240V HEATING ELEMENT THERMO MAIN STAT SWITCH...

  • Page 23: Accessories And Spare Parts

    ACCESSORIES AND SPARE PARTS IX:1. ACCESSORIES (for one piece) Order no Extraction cups (set of 6) 1000-1462 Cup Holder 1000-1431 Tongs for extraction cups 1529-0007 Thimbles0 26mm(setof25) 1522-0018 Thimbles0 22mm(setof25) 1522-0009 Thimble support (set of 7) 1000-1464 Thimble adapters (set of 6, 0 26 mm) 1000-1466 Thimble adapters (set of 6, 0 22 mm) 1000-1486...
  • Page 24 Air pump 1577-0008 Air pump membrane 1577-0014 Heating element 1000-1403 Thermostat 1579-0007 Strips, smal I 1569-0009 Switch red 1563-0001 Switch yellow 1563-0006 Pump body to water pump 1577-0029 tecator...
  • Page 25 The classical Soxhlet extraction with diethylether has for a long time been used for the determination of crude fat in feed stuffs. Bowever, the method is tedious and labour intensive. The SOXTEC SYSTEM has been developed to eliminate the drawbacks of the original procedure. A number of determinations have been perforraed to evaluate the SOXTEC systera in comparison with the classical Soxhlet method.
  • Page 26 Analytical balance with an accuracy - 0.1 mg. Soxtec System M6 (1040 - 001) complete with accessories. Thimbles 26 x 60 mm (1522 - 0018). Graduated cylinder 50 ml.
  • Page 27 C A U T I O N DIETHYLETHER IS HIGHLY INFLAMMABLE AND SHOULD ONLY BE USED BY QUALIFIED LABORATORY TECHNICIANS WHO HAVE BEEN PROPERLY TRAINED IN THE SAFETY ASPECTS OF ITS USE. PIACE THE SERVICE UNIT IN A SUITABLE PLACE WELL APART FRCM THE PLACE WHERE DIETHYLETHER IS HANDLED.
  • Page 28 Weigh clean and predried extraction cups with some boiling chips (W Never touch the clean extraction cups with bare hands! Transfer the dried thimbles with the thimble handler into the thimble supports (6 pcs fixed to its holder). Insert all six thimbles into the Extraction Unit and make sure they are all properly held by the magnets.
  • Page 29 After t h e solvent has been c o l l e c t e d for 2 - 3 minutes move t h e a i r valve to t h e "evaporation" p o s i t i o n and c o l l e c t t h e l a s t residue of t h e solvent in t h e condenser t r a p .
  • Page 30 the three Soxhlet laboratories, of which two (A and C) are official laboratories and the third ( B ) is a well reputed large laboratory in a fcooperative organization, emphasxze the difficulties in gettxng comparable xesults using the Soxhlet method. There is no doubt, hpwever, that there is a remarkable good correlation between all the laboratories involved in the tests.
  • Page 31 TABLE 1 Comparison between two different extraction times on SOXTEC SAMPLE 5 0 X 10 + 20 minutes 15 + 30 minutes Pigfeed 2.25 2.26 2.26 2.24 2.21 2.23 Pigfeed 3.50 3.39 3.45 3.41 3.46 3.44 Pigfeed 2.32 2.31 2.32 2.34 2.36 2.35...
  • Page 32 15 % correl. 0.9995 0.9997 0.9993 0.9998 coeff. TABLE 4 Three samples analysed by two laboratory technicians on the SOXTEC SYSTEM Duration of extrac. 30 min. • 45 m i n . Lab. tech. 2.36 2.35 Sample I 2.36 2.36 2.34 2.35...