Gold-coated PET membrane

for particle and microplastic analysis

Gold-coated membranes are used for the identification and characterization of micro- and nanoparticles in pharmaceutical fluids and chemical auxiliary agents as well as in foods and cosmetics. In pharmaceutical production, the freedom of a product from particles and the monitoring of a product’s particle content are fundamental requirements.

i3 TrackPor P i3 TrackPor R

A gold-coated membrane held by a pair of tweezers

Product purity for human protection

Contamination during manufacturing occurs naturally due to people and machines. Contamination due to solid materials such as particles, dust and organisms, or due to materials in liquid and gaseous forms such as product residues and aerosols, must be detected and evaluated. In addition, contamination can be created by packaging and production equipment. Checking the end product, often too late, is complex and expensive. Particle testing should therefore be integrated into the production process at an early stage to guarantee the purity of the product and to protect people.

The polyester membranes may also be used in technical cleanliness testing of functionally relevant automotive parts (particle contamination) in accordance with ISO 16232 and VDA 19. Particles are removed from automotive parts by methods such as sluicing with testing fluid. The testing fluid is then filtered through the i3 TrackPor P membranes which are prepared for examination under a light microscope.

High stability over a long filtration period

The i3 TrackPor P membranes feature a particularly smooth even surface. The polyester membrane (PET) with a 100/0 nm gold layer makes it possible to filter out all organic and inorganic particles. The i3 TrackPor P membranes are stable in a liquid medium for longer filtration periods. They provide optimal reflection in Fourier transform infrared (FTIR) microscopy and make a suitable conductive substrate for scanning electron microscope imaging (EDX/WDX).

To stabilize the gold-coated polyester membrane in the filtration and analysis phase, the filters can be used equipped with an aluminum ring.

i3 TrackPor P

Request an offer

Our gold-coated polyester membrane (PET) i3 TrackPor P can be purchased in all standard diameters from 13 to 47 millimeters and pore sizes from 0.8 to 5 micrometers.

Special customizations are also possible on request.

Reflective gold layer for optimal illumination intensity
Stable over a long filtration period
Suitable for the entire pH scale
Highest product quality for maximum reliability

Attribute
Pore size*	0.05 µm	0.8 µm	3.0 µm	5.0 µm
Membrane material	Polyester
Poren density (cm^-2)	6.00 E + 08	4.00 E + 07	3.00 E + 06	4.00 E + 05
Membrane thickness (µm)	23	22	20	19
Gold coating** (nm)	100/0
Diameter (mm)	13 / 25 / 30 / 37 / 45 / 47

*other pore sizes available on request
**top/bottom

i3 TrackPor R

Angled view of a gold-coated membrane assembled in an aluminum ring

Request an offer

Our gold-coated polyester membrane (PET) i3 TrackPor R is additionally framed in an aluminum ring. This makes it much easier to handle. The membrane cannot be scratched or bent, and it is easier to use in vacuum filtration.

Special customizations are also possible on request.

Reflective gold layer for optimal illumination intensity
Stable over a long filtration period
Suitable for the entire pH scale
In an aluminum ring for easier handling

Attribute
Pore size*	0.8 µm	3.0 µm	5.0 µm
Membrane material	Polyester
Pore density (cm^-2)	4.00 E + 07	3.00 E + 06	4.00 E + 05
Membrane thickness (µm)	22	20	19
Gold coating** (nm)	100/0
Diameter (mm)	30