Suggest Company and Rough Price in USD.We have to do chemical specification i.e metals, ions and carbonaceous constituents for size segregated aerosols.
Hi Manish,
there are some manufacturers for cascade impactors in different size ranges:
Dekati
http://dekati.com/cms/
Moudi (MSP)
http://www.mspcorp.com/products-detail.php/aerosol/model-m100110r-rotating-moudi-impactor
TSE
http://www.tse-systems.com/products/inhalation/aerosol-analysis.htm
Copley
http://www.copleyscientific.com/editorials.asp?c=74&d=3
Sioutas
http://www.skcinc.com/prod/225-370.asp
ThermoScientific
http://www.thermoscientific.com/en/product/six-stage-viable-andersen-cascade-impactor-1.html
a.s.o.
Price and choice depend on the performance you are seeking for.
Nanorange? Flux? Sample substrates (important for chemical analysis of aerosols)?
cheers
Stefan
Dear Manish,
Cascade impactors are costly. If you want only size segregation, and particle number concentrations you can go for optical particle counters (OPC) or SMPS...all available in NPL, Delhi, etc. However, if you want size-segregated chemical characterization you have to choose from the lot Stefan provided....i.e for offline chem analysis.
On-line analysis is done by ATOFMS (Time of Flight Mass Spectr)...I think also available in NPL.
Ramesh Verma - depends on the impactor, the flowrate, the stage cut-offs. e.g., for an Andersen impactor at 28.3l.min-1, the respirable fraction is the sum of stages 3, 4, 5 / total (depending on the product, the regulatory agency and other factors).
There isn't a simple answer.
We make the most cost effective cascade impactors, both six stage viable, and 8 stage non viable. Also zero cutoff stages for high flow rates. Lab Automate Technologies Inc.
www.labautomate.net
do get in touch
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