- Extraction experiments are to separate components from liquid or solid samples by solvent. Extraction is familiar to our daily life, ie brewing up tea or coffee, also it 's used for collecting rare metals from recycled electronic devices in industry.
As you know Soxhlet extractor is popular laboratory equipment. Even though Soxhlet extractor has complete design at a time, but we have examined carefully to redesign it. Our Soxhlet is designed for smoother flow of extracted liquid for many kinds of solvents.
Soxhlet is used for extracting active ingredients from solid natural products.
- How to use
- Set solvent flask at the bottom and condenser at the top of Soxhlet.
- When heating the solvent in the flask, solvent vapor go up to condenser through brunch tube. Condensed liquid solvent dripping into filtration tube extracts active intergradient.
- When extracted liquid go up to peak of left side tube, solvent go down back to flask by capillarity. After the operation repeated 5 to 6 times, this experiment ends.
Nicholson-Kemmins solid extractor
This extractor is for extracting active ingredients from natural products by steam distillation and solvent extraction.
Especially Nicholson-Kemmins solid extractor can extract large amount of samples with minimum solvent.
- How to use
- Charge appropriate solvent about half of flask in the solvent flask. Chop sample and put sample in the right side flask. Fill up water about 2/3 of flask.
- To circulate refrigerant in the condenser. Put cryogen (dry ice) in the trap.
- Starting to heat both solvent flask and sample flask.
- Solvent vapor go up to condenser when extract active ingredient from sample vapor. Condensed liquid with active ingredient go back to solvent flask. Condensed liquid after removed active ingredient go back to sample flask. Usually we use Diethyl ether for solvent.
Furuya method liquid extractor
This apparatus is for extracting dissolved organic substances from liquid. For example, in Pharmacy, collecting drugs from medicated mouse urine, in food science, extracting flavor component from naural products, in environment science, extracting hazardous substances from drainage.
- How to use
- Pour sample into center container up to a bit under the tip of center tube.
- Put solvent (usually ether) into the bottom flask. Heat up solvent to change vapor and condense it.
- Condensed liquid solvent come out from bottom nozzle of center container, then it goes through up to extract organic substance from the sample. Extracted liquid overflows back to flask.
- You can get target substance after distilled off solvent.
Liquid-liquid continuous extractor
This apparatus is for extracting organic substance dissolved in liquid, or for when sample changes from hydrophilic to hydrophobic by chemical reaction.
( CH 3 ) 3 -C-OH + HCl ⇨ ( CH 3 ) 3 -C-Cl + H 2 O t-butylalcohol t-butylchloride 〈How to use when above reaction happens〉 pecially Nicholson-Kemmins solid extractor can extract large amount of samples with minimum solvent.
Put aqueous hydrochloric acid and t-butylalcohol mixture in the left vessel. Heat it up with stirring.
Put hydrophobic solvent in the right flask and heat it up to vapour.
Condensed solvent rise up through the bottom of the vessel. The solution with reacted butylchloride returns to flask.
You could get condenced butylchloride after distilled off solvent.