Lab Products


Gelatin Memberance Filters


Ultramicro balances Cubis®
 
 

 

Gelatine filters in conjunction with the MD8 air samplers (gelatine filter method) are used for collection of airborne microbes and viruses. Gelatine filter disposables are individually packaged, presterilized and ready-to-connect units, each consisting of a gelatine membrane filter and a holder. Gelatine membrane filters are still available as filter discs, suitable for the filter holder 17655 (80 mm diameter) supplied with the MD8 airscan® air samplers as well as in smaller diameters.
  • "absolute" retention rate (99.9995% for Bac. sub. niger, 99.94% for T3 phages)

  • the filter maintains the viability of collected microorganisms for a relevant and meaningful sampling time

  • Gelatine filters are completely water-soluble, therefore microbes in one sample can be cultivated in/on different nutrient media or low and high bacteria counts can be measured - the sample is not affected by inhibitors

  • the solubility of the gelatine filter is a prerequisite for virus sampling
Gelatine filters
water soluble, pore size 3µm, thickness approx. 250µm
  • Bac. subtilis niger spores 99.9995% at 0.25m/s inlet velocity

  • Coli-Phages: phage T1, 99.9% at 0.3m/s inlet velocity and 50% rel. air humidity

  • Phage T3, 99.94% at 0.3 m/s inlet velocity and 80% rel. air humidity