
CHROMAFIL® GF/PET |
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Polyester syringe filters with glass fiber prefilters |
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Combi syringe filters with a coarse glass fiber prefilter and a small-pore membrane as main filter |
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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
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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 |
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Housing: |
Solvent-resistant, ultra low bleed polypropylene |
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Entry: |
Luer lock |
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Exit: |
Luer |
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Pore diameter: |
1.0 / 0.20 µm or 1.0 / 0.45 µm |
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Filter diameter: |
25 mm |
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Void volume: |
< 80 µL |
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Packing unit: |
100 filters / BIG-BOX with 400 filters |
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Hydrophilic membrane |
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For aqueous and organic – aqueous liquids, i.e. for polar and medium polar solutions |
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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 |
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Chemical compatibility of filter materials |
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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. |
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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 % |
– |
– |
– |
– |
 |
|
 |
 |
 |
 |
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Acetone |
– |
– |
 |
 |
 |
|
– |
– |
 |
 |
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Acetonitrile |
– |
– |
 |
 |
 |
|
 |
 |
 |
 |
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Ammonia, 25 % |
– |
– |
o |
– |
 |
|
 |
 |
o |
 |
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Benzene |
 |
 |
 |
 |
 |
|
o |
|
 |
 |
o |
n-Butanol |
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 |
 |
o |
 |
|
 |
 |
 |
 |
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Cyclohexane |
 |
 |
 |
o |
 |
|
 |
 |
 |
 |
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Dichloromethane |
 |
– |
 |
– |
 |
|
 |
– |
 |
 |
– |
Diethyl ether |
o |
o |
 |
 |
 |
|
 |
 |
 |
 |
o |
Dimethylformamide |
– |
– |
o |
 |
 |
|
– |
– |
 |
 |
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1,4-Dioxane |
– |
– |
 |
 |
 |
|
o |
– |
 |
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o |
Ethanol |
– |
 |
 |
 |
 |
|
 |
 |
 |
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Ethyl acetate |
– |
– |
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 |
 |
|
 |
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 |
 |
o |
Ethylene glycol |
o |
o |
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 |
|
 |
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 |
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Formic acid, 100 % |
 |
– |
o |
– |
 |
|
 |
 |
o |
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Hydrochloric acid, 30 % |
– |
– |
– |
– |
 |
|
 |
 |
– |
 |
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Methanol |
– |
– |
 |
 |
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|
 |
 |
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Nitric acid, 65 % |
– |
– |
– |
– |
o |
o |
o |
|
o |
 |
– |
Oxalic acid, 10 % aqueous |
 |
– |
 |
– |
 |
|
 |
|
 |
 |
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Petroleum ether |
 |
 |
 |
 |
 |
|
 |
 |
 |
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Quotation and Ordering
131 Thailand Science Park. Innovation Cluster 1 Building, Klong 1, Klong Luang, Pathumthani 12120 Thailand.
Tel. +6681-847-6768, +662-191-3928 Fax +662-191-3929 Mr.Thoniwadh +6685-811-4779, Ms.Nareerat +6685-814-9653
Email: info@highents.com
สนใจขอใบเสนอราคาและสั่งซื้อสินค้า
131 อุทยานวิทยาศาสตร์ประเทศไทย อาคารกลุ่มนวัตกรรม 1 ต. คลองหนึ่ง อ. คลองหลวง จ. ปทุมธานี 12120
โทร. 081-847-6768, 02-191-3928 แฟกซ์ 02-191-3929 คุณโทณิวัฒน์ 085-811-4779, คุณนารีรัตน์ 085-814-9653
Email : info@highents.com