Filtry strzykawkowe z prefiltrem GD/XP
Filtry strzykawkowe GD/XP będące modyfikacją filtrów GD/X, posiadają warstwowy prefiltr polipropylenowy, dzięki czemu można je wykorzystać do analizy próbek zawierających jony nieorganiczne (analiza śladowa metali).
Whatman™ GD/XP disposable syringe filter, a modification of the GD/X line, uses a polypropylene prefilter stack, making GD/XP suitable for samples that require inorganic ion analysis.

• Incorporates a two-layer polypropylene prefilter stack rather than a multi-layer glass fiber stack to minimize levels of ion extractables
• Extremely low protein binding syringe filter
• High loading volume for filtration of challenging samples

Disposable syringe filter for trace metal analysis
Because of their high purity and minimal ion extractables, GD/XP syringe filters are recommended for analyzing ion content that would otherwise experience interference from glass-based extractables. For example, GD/XP is used for trace metal analysis, particularly ion analysis using inductively coupled plasma-mass spectrometry (ICP-MS).

GD/XP syringe filter with integrated prefilter
The Whatman™ GD/XP disposable syringe filter has several different membrane material options. These include:

• Nylon
• Polyvinylidene difluoride (PVDF)
• Polytetrafluoroethylene (PTFE)
• Polypropylene – membrane or depth filter media
• Polyethersulfone (PES)
Filtry strzykawkowe z prefiltrem GD/XP
Diameter 25
Pore Size 0.45 
Prefilter Material PP 20 µm : 5 µm 
Inlet Connector Female luer lock 
Outlet Connector Male luer 
Housing Pigment free polypropylene (PP) 
Sterilization Autoclave at 1210C (1310C max) at 1 bar (15 psi) for 20 minutes 
Filtration Area 4.6 cm2
Operating pressure max. 5.2 bar (75 psi) 
Flow Direction Flow should enter from the inlet 
Product Product Name Filtration media Pack size
6970-2504 GD/XP Syringe Filter; nylon filtration medium; 0.45 µm (150 pcs) Nylon 150 pieces
6971-2504 GD/XP Syringe Filter; nylon filtration medium; 0.45 µm (1500 pcs) Nylon 1500 pieces
6972-2504 GD/XP Syringe Filter; PVDF filtration medium; 0.45 µm (150 pcs) Polyvinylidene Difluoride (PVDF) 150 pieces
6973-2504 GD/XP Syringe Filter; PVDF filtration medium; 0.45 µm (1500 pcs) Polyvinylidene Difluoride (PVDF) 1500 pieces
6974-2504 GD/XP Syringe Filter; PTFE filtration medium; 0.45 µm (150 pcs) Polytetrafluoroethylene (PTFE) 150 pieces
6978-2504 GD/XP Syringe Filter; polypropylene filtration medium; 0.45 µm (150 pcs) Polypropylene (PP) 150 pieces
6992-2504 GD/XP Syringe Filter; depth polypropylene; 0.45 µm; PP filtration medium Polypropylene (PP) 150 pieces
6993-2504 GD/XP Syringe Filter; depth polypropylene filtration medium; 0.45 µm (1500 pcs) Polypropylene (PP) 1500 pieces
6994-2504 GD/XP Syringe Filter; PES filtration medium; 0.45 µm (150 pcs) Polyethersulfone (PES) 150 pieces
6995-2504 GD/XP Syringe Filter; PES filtration medium; 0.45 µm (1500 pcs) Polyethersulfone (PES) 1500 pieces