Extraction Systems
Extraction Systems
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.
Fisherbrand™ Filtration Extraction Thimbles - Grade 649 Glass Fibre
Ensures complete extraction of samples, prevents contamination and minimize hands-on time
DWK Life Sciences Kimble™ KIMAX™ Soxhlet Apparatus with Allihn Condenser, Complete unit
Designed from Fed. Spec. NNN-F-240
Promotions are available
PYREX™ Filter Tubes

Used to collect filtrate
DWK Life Sciences Kimble™ Kontes™ Soxhlet/Dean-Stark Apparatus with Allihn Condenser
Avoid analyte loss and sample contamination
Promotions are available
PYREX™ Accelerated One-Step™ Extractor/Concentrator Replacement Parts
For use with Accelerated One-Step Extractor/Concentrator Systems
Cytiva Whatman™ Glass Microfiber Extraction Thimbles, Grade 603G, without binder
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.
DWK Life Sciences Kimble™ Kontes™ Kuderna-Danish Apparatus with a Graduated Concentrator Tube
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.
Promotions are available
PYREX™ Replacement Tube for Kuderna-Danish Apparatus

Replacement tube for use with Kuderna-Danish apparatus
DWK Life Sciences Wheaton™ Kuderna-Danish Evaporative Concentrator With Clear-Seal™ Joints
For concentration of trace amounts of analyte in organic solvent
Promotions are available
DWK Life Sciences Kimble™ Kontes™ 10mL SLOW-DRY™ Concentrator Tube for Evaporative Concentrators
The SLOW-DRY™ concentrator tube reduces the risk of concentrating a sample to dryness.
Promotions are available
PYREX™ Soxhlet Extractor with Standard Taper Joints, Body Only

Bulb in siphon tube near the top of tube facilitates cycling of the siphoning action
DWK Life Sciences Kimble™ KIMAX™ Soxhlet Apparatus with Allihn Condenser, Condenser only
For use with for Kimble™ extraction apparatus
Promotions are available