ULTRASOUND ASSISTED EXTRACTION?

[MSCHemist]

I just came accross this method in several food analytical chem papers and was curious about it.

http://naldc.nal.usda.gov/download/42350/PDF
http://www.sciencedirect.com/science/ar ... 7701000669
http://www.ingentaconnect.com/content/t ... 5/art00004

I often use a Branson sonicator bath to help mix my samples. What kind of equipment do you need for it? It it mainly used for unprocessed plant tissue or flavors?

[AICMM]

MSChemist,

In my opinion, US baths do not have enough oomph. That's why the EPA method for explosives has such a long extraction time.

Use a real US source.

Comparison of ultrasonic assisted digestion with traditional methods for alpha/beta analysis
D. Dale, G. Brooks, M. Monagle
Journal: Journal of Radioanalytical and Nuclear Chemistry - J RADIOANAL NUCL CHEM , vol. 236, no. 1, pp. 199-204, 1998.

Best regards,

AICMM

[MSCHemist]

What type of equipment do you need. The type with the probe that goes directly in solution. I used that back when I was doing Mol Bio to lyse E. coli cells.

[James_Ball]

What type of equipment do you need. The type with the probe that goes directly in solution. I used that back when I was doing Mol Bio to lyse E. coli cells.

I would think something similar to this would be what you need

http://www.emersonindustrial.com/en-US/ ... fault.aspx

This is a link to the USEPA method for Ultra Sonic Extraction of Organics from Soils using the above type ultra sonic cell disruptor.

http://www.epa.gov/osw/hazard/testmetho ... /3550c.pdf