Whatman GD/X Syringe Filters
The Whatman GD/X range is speci cally designed for high particulate-loaded samples. Constructed of a pigment-free polypropylene housing with a pre ltration stack of Whatman GMF 150 (graded density) and GF/F glass micro ber media, these lters allow you to lter even the most dif cult samples with less hand pressure. Whatman GD/X Syringe Filters can process three to seven times more sample volume than a syringe lter containing a single ltration layer.
GMF 150 and GF/F are produced from 100% borosilicate glass micro ber. The graded density GMF 150 ltration medium has a coarse top layer meshed with a ne bottom layer that retains particles to 1.0 μm. A GF/F lter then retains particles down to 0.7 μm. The pre lter stack ends with a nal membrane lter.
Whatman GD/X lter construction facilitates exceptional loading capacity with fast ow rates.
This multilayer construction prevents the premature build up of back pressure typically associated with single ltration layer syringe lters.
Features
- 13 mm and 25 mm diameter syringe lters
- 13 mm lters are recommended for samples up to 10 ml, and 25 mm lters for samples greater than 10 ml (however, the volume of sample that can be ltered through each lter depends on the characteristics of the sample)
- Sterile options
- Pigment-free polypropylene housing
- Prefiltration stack of Whatman GMF 150
- (graded density) and GF/F glass microfiber media Whatman GD/X Syringe Filters
Benefits
- Requires less hand pressure, even with dif cult samples
- Processes three to seven times more sample volume
Applications
Whatman GD/X Syringe Filters are well suited for heavily particulate-laden samples found in:
- Dissolution testing
- Content uniformity
- Concentration analysis
- Food analysis
- Environmental samples
- Composite assay
Typical data
Whatman GD/X Syringe Filters
Ordering information
Whatman GD/X Syringe Filters