 Whatman GD/X disposable syringe filters are the ideal choice for the preparation of hard-to-filter samples. The syringe filters have a pigment-free polypropylene housing to eliminate sample contamination and contain a unique prefiltration stack of Whatman GMF 150 (graded density) and GF/F glass microfibre media, which allows you to filter even the most difficult samples with less hand pressure. Compared to an unprotected membrane, GD/X syringe filters can process three to seven times more sample volume.
GMF 150 (graded density) and GF/F are produced from 100% borosilicate glass microfibre. The unique, graded density GMF 150 medium has a coarse top layer meshed with a fine layer beneath that retains particles to 1.0 µm. A GF/F filter then retains particles down to 0.7 µm. Below the prefilter stack is the final membrane.
This provides exceptionally good loading capacity with fast flow rates and avoids the build up of back pressure often experienced through "blocking" of an unprotected membrane.
Features and Benefits
- 13 mm and 25 mm diameter syringe filters
- 13 mm device for samples up to 10 mL and 25 mm device for samples larger than 10 mL
- Sterile options available
Applications
Hard-to-filter heavily particulate laden samples
- Dissolution testing
- Content uniformity
- Concentration analysis
- Routine sample preparation
- Food analysis
- Environmental samples
- Composite assay
Safety
High pressures can be obtained when using syringes. The smaller the syringe the higher the pressure that can be generated. As a general guide, the following pressures can be obtained by hand with the syringes indicated: 20mL- 30 psi; 10mL- 50 psi; 5mL- 75 psi; 3mL- 100 psi; 1m- 150 psi. Each user should determine the pressure they can generate by hand with a specific size syringe and take appropriate safety precautions not to exceed the recommended rating for the device used. If these limitations are exceeded, bursting of the device may occur.
Specifications
|
GD/X 13 mm |
GD/X 25 mm |
Housing |
Polypropylene (pigment free) |
Polypropylene (pigment free) |
Filtration Area |
1.3 cm2 |
4.6 cm2 |
Maximum Pressure |
100 psi |
75 psi |
Volume ‘Hold Up’ Full Housing |
0.5 mL |
1.4 mL |
with Air Purge |
50 µL (approx) |
250 µL (approx) |
Dimensions |
21.7 mm x 29.7 mm |
21.7 mm x 29.7 mm |
Weight |
3 g (approx) |
3 g (approx) |
Flow Direction |
Flow should enter from the inlet |
Flow should enter from the inlet |
Inlet Connection |
Female luer lock |
Female luer lock |
Outlet Connection |
Male slip luer |
Male slip luer |
Sterilization |
Autoclave at 121ºC (131ºC max) |
Autoclave at 121ºC (131ºC max) |
|
at 15 psi for 20 minutes† |
at 15 psi for 20 minutes† |
Biosafe |
All materials pass USP Class VI |
All materials pass USP Class VI |
Glass Microfiber |
100% borosilicate |
100% borosilicate |
Prefiltration Media |
GMF 150 10 µm : 1 µm |
GMF 150 10 µm : 1 µm |
|
GF/F 0.7 µm |
GF/F 0.7 µm |
Ordering Information - GD/X Syringe Filters
Catalog Number |
Membrane† |
Pore Size (µm) |
Diameter (mm) |
Quantity/Pack |
13 mm GD/X – Non-Sterile |
W-6870-1302 |
Nylon |
0.2 |
13 |
150 |
W-6870-1304 |
Nylon |
0.45 |
13 |
150 |
W-6871-1302 |
Nylon |
0.2 |
13 |
1500 |
W-6871-1304 |
Nylon |
0.45 |
13 |
1500 |
W-6872-1302 |
PVDF |
0.2 |
13 |
150 |
W-6872-1304 |
PVDF |
0.45 |
13 |
150 |
W-6873-1304 |
PVDF |
0.45 |
13 |
1500 |
W-6874-1302 |
PTFE |
0.2 |
13 |
150 |
W-6874-1304 |
PTFE |
0.45 |
13 |
150 |
W-6875-1302 |
PTFE |
0.2 |
13 |
1500 |
W-6875-1304 |
PTFE |
0.45 |
13 |
1500 |
W-6876-1302 |
PSU |
0.2 |
13 |
150 |
W-6876-1304 |
PSU |
0.45 |
13 |
150 |
W-6878-1302 |
PP |
0.2 |
13 |
150 |
W-6878-1304 |
PP |
0.45 |
13 |
150 |
W-6880-1302 |
CA |
0.2 |
13 |
150 |
W-6880-1304 |
CA |
0.45 |
13 |
150 |
W-6882-1316 |
GF/A |
1.6 * |
13 |
150 |
W-6884-1310 |
GF/B |
1.0* |
13 |
150 |
W-6886-1312 |
GF/C |
1.2* |
13 |
150 |
W-6888-1327 |
GF/D1 |
2.7* |
13 |
150 |
W-6894-1304 |
GMF1 |
0.45* |
13 |
150 |
25 mm GD/X – Non-Sterile |
W-6870-2502 |
Nylon |
0.2 |
25 |
150 |
W-6870-2504 |
Nylon |
0.45 |
25 |
150 |
W-6870-2550 |
Nylon |
5.0 |
25 |
150 |
W-6871-2502 |
Nylon |
0.2 |
25 |
1500 |
W-6871-2504 |
Nylon |
0.45 |
25 |
1500 |
W-6871-2550 |
Nylon |
5.0 |
25 |
1500 |
W-6872-2502 |
PVDF |
0.2 |
25 |
150 |
W-6872-2504 |
PVDF |
0.45 |
25 |
150 |
W-6873-2502 |
PVDF |
0.2 |
25 |
1500 |
W-6873-2504 |
PVDF |
0.45 |
25 |
1500 |
W-6874-2502 |
PTFE |
0.2 |
25 |
150 |
W-6874-2504 |
PTFE |
0.45 |
25 |
150 |
W-6875-2502 |
PTFE |
0.2 |
25 |
1500 |
W-6875-2504 |
PTFE |
0.45 |
25 |
1500 |
W-6876-2502 |
PSU |
0.2 |
25 |
150 |
W-6876-2504 |
PSU |
0.45 |
25 |
150 |
W-6878-2502 |
PP |
0.2 |
25 |
150 |
W-6878-2504 |
PP |
0.45 |
25 |
150 |
W-6879-2504 |
PP |
0.45 |
25 |
1500 |
W-6880-2502 |
CA |
0.2 |
25 |
150 |
W-6880-2504 |
CA |
0.45 |
25 |
150 |
W-6881-2504 |
CA |
0.45 |
25 |
1500 |
W-6882-2516 |
GF/A |
1.6* |
25 |
150 |
W-6883-2516 |
GF/A |
1.6* |
25 |
1500 |
W-6884-2510 |
GF/B |
1.0* |
25 |
150 |
W-6886-2512 |
GF/C |
1.2* |
25 |
150 |
W-6888-2527 |
GF/D1 |
2.7* |
25 |
150 |
W-6890-2507 |
GF/F1 |
0.7* |
25 |
150 |
W-6891-2507 |
GF/F1 |
0.7* |
25 |
1500 |
W-6892-2515 |
934-AH |
1.5* |
25 |
150 |
W-6894-2504 |
GMF1 |
0.45* |
25 |
150 |
W-6895-2504 |
GMF1 |
0.45* |
25 |
1500 |
W-6904-2502 |
PES |
0.2 |
25 |
150 |
W-6904-2504 |
PES |
0.45 |
25 |
150 |
W-6905-2502 |
PES |
0.2 |
25 |
1500 |
W-6905-2504 |
PES |
0.45 |
25 |
1500 |
25 mm GD/XS – Sterile |
W-6900-2502 |
PVDF |
0.2 |
25 |
50 |
W-6900-2504 |
PVDF |
0.45 |
25 |
50 |
W-6896-2502 |
PES |
0.2 |
25 |
50 |
W-6896-2504 |
PES |
0.45 |
25 |
50 |
W-6897-2502 |
PES |
0.2 |
25 |
500 |
W-6897-2504 |
PES |
0.45 |
25 |
500 |
W-6901-2502 |
CA |
0.2 |
25 |
50 |
W-6901-2504 |
CA |
0.45 |
25 |
50 |
W-6902-2504 |
GMF1 |
0.45* |
25 |
50 |
† PP – Polypropylene |
PSU – Polysulfone |
PES – Polyethersulfone |
PVDF – Polyvinylidene fluoride |
PTFE – Teflon |
CA – Cellulose acetate |
GF – Glass filber |
GMF - Glass microfiber |
* Glass microfiber particle retention rating |
1 Contains GMF 150 without the GF/F prefilter |
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