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Automated solvent extractors according to Randall

Supplier: VELP Scientifica
The SER 148/3 and SER 148/6 can be used to separate a substance or a group of elements (e.g. fat) from solid and semi-solid samples according to the Randall technique (consisting of immersion, washing and solvent recovery). The main field of application is the determination of the content of soluble products such as fats, detergents, plasticisers and pesticides in food, animal feed, detergents, rubber and plastic formulas, pharmaceutical products, soil, etc.

  • Automated process with control of temperature and time of process phases
  • Up to five times faster than Soxhlet extraction, as the method uses hot/boiling solvents for extraction
  • Low solvent consumption
  • Full operator safety in compliance with IP 55

Delivery information: Unit supplied with extractions cups (3/6), 25×extraction thimbles 33×80 mm, extractions thimbles holders (3/6), inlet tube, heat shield, butyl and viton seals (3/6).

Delivery information: Unit supplied with extractions cups (3/6), 25× extraction thimbles 33×80 mm, extractions thimbles holders (3/6), inlet tube, heat shield, butyl and viton seals (3/6).



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Description Pk VWR Catalog Number Quantity
SER 148/3 1 VELPF30300240
Supplier Article Number:: F30300240
SER 148/6 1 VELPF30300242
Supplier Article Number:: F30300242


Model SER 148/3 SER 148/6
No. of samples 3 6
Max. vol. of extraction cup (ml) 150
Sample capacity 0,5 to 15 g (typically 2 - 3 g)
Temperature operating range (°C) 100 - 260
Displayed results Working temperature / immersion time / washing time / recovery time
Immersion time (min) 0 - 999
Washing time (min) 0 - 999
Recovery time (min) 0 - 999
Solvent recovery (typical) 50 - 75%
Water consumption (l/h) 120
No. of programs 29
Housing Epoxy-painted stainless steel structure
Power consumption (W) 500 950
W×D×H (mm) 480×390×620 700×390×620
Weight (kg) 30 40


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Description Pk VWR Catalog Number Quantity
Extraction cup for SER 148 series 6 VELPA00000142
Supplier Article Number:: A00000142
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