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Home > Products > Analytical Sciences > COSMOSIL HPLC/SFC Columns > Sample Filteration > Cosmospin Filter

Cosmospin Filter

Cosmospin filters are used to remove fine particles and precipitates from samples by centrifugation. They utilize Omnipore hydrophilic PTFE membrane filter, which has a wide range of chemical resistance. Cosmospin filters are the best choice for HPLC sample filtration. Two pore sizes, G (0.2 µm) and H (0.45 µm), are available.

      

Product brochure (Click here for download, pdf) 

Chemical compatibility

SolventCosmonice
W series		Cosmonice
S series		Cosmospin
Acetic Acid, 98% + + +
Acetone - + +
Acetonitrile + + +
Ammonia Solution (6N) + + +
Ammonium Hydroxide (Conc.) + + -
Amyl Alcohol + + +
Benzene + + +
Benzyl Alcohol + + + (1%)
Boric Acid + + +
Butyl Acetate   +  
Carbon Tetrachloride + + +
Chloroform + + +
Cyclohexanone - + +
Dichloromethane      
Diethylacetamide - + +
Dimethyl sulfoxide (DMSO) - + +
Dimethylformamide - + +
Dioxane + + +
Ethers + + +
2-Ethoxyethanol + +  
Ethyl Acetate + + +
Ethyl Alcohol + + +
Ethylene Glycol + + +
Formamide      
Freon, TF or PCA Solvent + + +
Gasoline + + +
Glycerine (Glycerol) + + +
Helium Gas + +  
Hexane + + +
Hydraulic Oil (5606)      
Hydrochloric Acid (6N) + + +
Hydrofluoric Acid + + -
Hydrogen Gas + + +
Hydrogen Peroxide (3%) + + +
Isopropyl Acetate + + +
Isopropyl Alcohol + + +
Kerosene + + +
Methanol + + +
Methyl Ethyl Ketone + + +
Methyl Isobutyl Ketone + + +
2-Methyl-1-Propanol + + +
Nitric Acid (6N) -    
Nitrobenzene + + +
Ozone Gas - + -
Paraldehyde + + +
Pentane + + +
Petroleum Ether + +  
Phenol (Water Saturated) + + +
Phosphate Buffer Solution      
2-Propanol + + +
Pyridine - + +
Seawater + + +
Silicone Oils + + +
Sodium Hydroxide (Conc.) - - -
Sodium Thiosulfate (Photo Fixing Solution)     +
Sulfuric Acid (6N) + + +
Tetrahydrofuran (THF) + +  
Toluene + + +
Trichloroacetic Acid + +  
Trichloroethane + + +
Trichloroethylene + + +
Trifluoroacetic acid (TFA) + +  
Xylene + + +

++: Recommended, --: Not recommended, (brank): No data

Technical Note

Sample Pretreatment for HPLC (PDF)

References

1. Onozato, Mayu, et al.
"Alteration in plasma docosahexaenoic acid levels following oral administration of ethyl icosapentate to rats." 
Practical laboratory medicine 18 (2020): e00143.
 
2. Sugahara, Kohtaro, et al.
"Practical optimization of liquid chromatography/mass spectrometry conditions and pretreatment methods toward the sensitive quantification of auxin in plants." 
Rapid Communications in Mass Spectrometry 34.7 (2020): e8625.
 
3. Takaramoto, Shunki, et al.
"Spiropyran labeling for sensitive probing of protein diffusion by the transient grating method." 
Chemical Physics Letters 739 (2020): 136919.

Ordering Information

Product Cat.No. Maximum Sample Volume Hold-up Volume Maximum Centrifuge Force Pore Size Rotor Size (fixed-angle) Filtration Area Color PKG Size Price(US$)  
Cosmospin Filter G 06549-44 0.4 ml 5 µl 5,000 x g 0.2 µm 1.5 ml 0.2 cm2 brown 100 pkg 345.00 Buy
Cosmospin Filter H 06540-34 0.4 ml 5 µl 5,000 x g 0.45 µm 1.5 ml 0.2 cm2 white 100 pkg 345.00 Buy

Dimention: Diameter 10.6 mm x Length 45 mm
Membrane: Omnipore Hydrophilic PTFE
Sample reservoir and collection tube: Polypropylene

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