filtr.AID membranes

The patented gold-coated filters (filtr.AID membranes)  are perfect substrates for ensuring both robust counting and Raman signals without substrate interference. They are tailored for the streamlined morphology directed Raman and LIB Spectroscopy of microparticles by means of Single Particle Explorer (SPE).

filtr.AID, patented gold-coated filters filtr.AID are tailored for the streamlined morphology directed Raman and LIB spectroscopy of microparticles by means of SPE

filtr.AID Features

  • Different pore sizes --> available with 0.8, 3, 5, and 10 µm
  • custom funnels --> from 4, 10 and 18 mm diameter
  • amount of sample --> 50 µl up to several liters
  • fast sampling --> e.g. 100 ml in just 2 minutes
  • cleanroom manufactured --> no pre-cleaning required

Benefits by using filtr.AID

The membrane was specifically developed and patented for micro spectroscopy. filtr.AID renders the conventional time-consuming preparation techniques for individual micro particles, using needles and tweezers, superfluous. After separation, the micro particles remain on the membrane, thus enabling exact identification using RamanIR, LIBS  or EDX spectroscopy.

filtr.AID Spezifications

  • filtr.AID Standard
Substrate Polycarbonate (PC)
Smallest detectable particle size 0.5 µm
  • filtr.AID Standard und Solvent
Acid and base resistance pH-values: 1 - 14
Pore size Standard: 0.8, 3, 5, 10 µm
Cleanliness Cleanroom manufactured - Quality Certificate
Usability Aluminum framed
Dimensions Inner Diameter: ø 29 mm
Outer Diameter: ø 33 mm

  • filtr.AID funnel
Precision Effective Filtration Area (EFA) Max. misalignment of Effective Filtration Area 0.1 mm
Diameter Effective Filtration Erea (EFA) ø 4 mm standard; selectable ø 4, 10 and 18 m