อุปกรณ์กรอง Syringe Filter CHROMAFIL GF/RC

CHROMAFIL® GF/PET
Polyester syringe filters with glass fiber prefilters

Features

	Combi syringe filters with a coarse glass fiber prefilter and a small-pore membrane as main filter
	User benefits: For solutions with a high load of particulate matter: lower back pressure, easy filtration For high yields of filtrate: more mL of pure filtrate per filter
	The technology: The glass fiber membrane (1.0 µm) removes coarse particles, before they can block the fine main membrane. This results in a better filtration efficiency, especially for highly contaminated samples
	Housing:	Solvent-resistant, ultra low bleed polypropylene
	Entry:	Luer lock
	Exit:	Luer
	Pore diameter:	1.0 / 0.20 µm or 1.0 / 0.45 µm
	Filter diameter:	25 mm
	Void volume:	< 80 µL
	Packing unit:	100 filters / BIG-BOX with 400 filters

Hydrophilic membrane
	For aqueous and organic – aqueous liquids, i.e. for polar and medium polar solutions
	Recommended for solutions with a high load of particulate matter or for highly viscous aqueous solutions

Ordering information
Color-coded regenerated cellulose – glass fiber combi filters
Type	Pore size	Membrane	Color code		Standard pack		BIG-BOX
	[µm]	dia. [mm]	top	bottom	Filters/pack	REF	Filters/pack	REF
GF/RC-20/25	1.0/0.20	25	blue	blue	100	729050	400	729050.400
GF/RC-45/25	1.0/0.45	25	black	blue	100	729051	400	729051.400

CHROMAFIL® filter membranes

Chemical compatibility of filter materials

The following table lists the chemical compatibility of our CHROMAFIL® materials. The chemical compatibility depends on several parameters such as time, pressure, temperature and concentration. In most cases, CHROMAFIL® filters will have only short contact with a solvent.

In these cases they may be used despite of limited compatibility.
For example, a PTFE filter with PP housing does not liberate any UV-detectable substances during filtration of 5 mL THF, although PP shows only limited resistance towards THF.

Solvent	Material
	MV	CA	RC	PA	PTFE	H-PTFE	PVDF	PES	PET	GF	PP
Acetaldehyde	–	–		o							o
Acetic acid, 100 %	–	–	–	–
Acetone	–	–					–	–
Acetonitrile	–	–
Ammonia, 25 %	–	–	o	–					o
Benzene							o				o
n-Butanol				o
Cyclohexane				o
Dichloromethane		–		–				–			–
Diethyl ether	o	o									o
Dimethylformamide	–	–	o				–	–
1,4-Dioxane	–	–					o	–			o
Ethanol	–
Ethyl acetate	–	–									o
Ethylene glycol	o	o
Formic acid, 100 %		–	o	–					o
Hydrochloric acid, 30 %	–	–	–	–					–
Methanol	–	–
Nitric acid, 65 %	–	–	–	–	o	o	o		o		–
Oxalic acid, 10 % aqueous		–		–
Petroleum ether
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Posted in Chromatography Filter, Filter & Extract, Products

อุปกรณ์กรอง Syringe Filter CHROMAFIL GF/RC

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