Systems, devices, and accessories designed for the extraction of compounds in various phases; available in a variety of materials and configurations.
In the food industry, scientists use extraction systems to check for contaminants and other harmful substances in food samples to maintain food safety.
What Are Extraction Systems Used for?
Extraction systems are used to measure the fat content of foodstuffs or other materials. Although extractions can be performed manually, using extraction systems can reduce exposure to heat and toxic solvents like ethyl or petroleum ether.
Soxhlet Extraction Systems
The method was developed in 1879 by Franz von Soxhlet to extract lipids from solid materials. Typically, Soxhlet extractions are especially useful when the compound and the impurity have different solubilities in the solvent. The extractor can run by itself and efficiently uses only a small amount of recycled solvent to dissolve a large amount of material.
A Soxhlet extractor consists of a percolator that circulates the solvent, a thick filter paper thimble that retains the solids, and a siphon to periodically empty the thimble.
Goldfisch Extraction Systems
This method is recognized by AOAC International (agricultural chemists) as an acceptable procedure for measuring fat and oil content. Extraction times can be reduced from 16 to approximately four hours with this reflux method.
For the extraction of solids with a suitable solvent
|Standard Taper Joint Bottom||24/40|
Ensures complete extraction of samples, prevents contamination and minimize hands-on time
|Description||Filtration Extraction Thimbles - Grade 649 Glass Fibres|
|For Use With (Equipment)||Soxhlet extractors or automized extractors|
|Wall Thickness||1 mm|
|For Use With (Application)||Pollution monitoring, air sampling, High temperature filtration (up to 500°C), For acid and base solvents|
|Type||Soxhlet Extraction Apparatus|
|Diameter (Metric) Outer Tube||1 cm|
|Diameter (English) Outer Tube||0.39 in.|
Designed from Fed. Spec. NNN-F-240
|Includes||Allihn condenser, soxhlet extraction tube|
|Type||Extraction Apparatus Assembly|
|Height (Metric)||16 cm|
|Product Type||Filter Thimble|
|For Use With (Equipment)||Pyrex gooch fritted discs crucibles and porcelain plates|
|Diameter (Metric) Outer||0.8 cm|
|Diameter (English) Outer||0.31 in.|
|For Use With (Application)||Used to collect the filtrate|
|Height (English)||6.29 in.|
Avoid analyte loss and sample contamination
|For Use With (Application)||Avoid analyte loss and sample contamination|
For use with Accelerated One-Step Extractor/Concentrator Systems
|For Use With (Equipment)||Pyrex Accelerated One-Step Extractor or Concentrator System|
Use for analysis of hot and acidic gases, including emission control and smoke tack gas monitoring. Whatman™ Glass Extraction Thimbles are designed to fit most Soxhlet extraction units and can be used with solvents that are incompatible with cellulose thimbles.
The Kuderna-Danish apparatus was developed for the concentration of trace amounts of sample dissolved in organic solvents. The column is designed to speed evaporation with reduced hold-up. It is very useful in sample preparation before analysis with solvents such as petroleum ether or hexane.
|Type||Graduated Concentrator Tube|
|Standard Taper Joint||19/22|
|Capacity (English)||0.3 oz.|
|Standard Taper Joint Top||24/40|
|Capacity (Metric)||10 mL|
|For Use With (Application)||It is very useful in sample preparation before analysis with solvents such as petroleum ether or hexane|
|Graduations||0 to 1 mL/0.1 mL, 2 to 10 mL/1 mL|
Replacement tube for use with Kuderna-Danish apparatus
|For Use With (Equipment)||Kuderna-Danish Apparatus|
|Standard Taper Joint Top||19/22|
|Graduations||0 to 2 mL/0.1 mL, 3 mL/1 mL|
For concentration of trace amounts of analyte in organic solvent
The SLOW-DRY™ concentrator tube reduces the risk of concentrating a sample to dryness.
Bulb in siphon tube near the top of tube facilitates cycling of the siphoning action
|Includes||Standard taper joints, body only|
|For Use With (Equipment)||Pyrex Soxhlet Apparatus Allihn Condenser|
|For Use With (Application)||Bulb in siphon tube near the top of tube facilitates cycling of the siphoning action|
For use with for Kimble™ extraction apparatus
|For Use With (Equipment)||Soxhlet Extraction Apparatus|