In biology a thin, pliable layer of tissue covering surfaces or separating or connecting regions, structures, or organs of an animal or a plant.
In chemistry a membrane is a thin sheet of natural or synthetic material that can be penetrated, especially by liquids or gases.
In environmental applications of nanotechnology a membrane can be used as a filter.

The term "membrane" was found in the following pages:

IAP 2014: International Conference on Interfaces against Pollution | EVISA's Agenda of Events
Instrument database: Shimadzu Europe - HIC-ESP Ion Chromatograph
Speciation and Toxicity | EVISA's News
Instrument database: Dionex Corporation - ICS-1100 Basic Integrated IC System
Instrument database: Zinsser Analytic GmbH - Perifill®IQ 2000 MK 3A data store
Journals database: Biochemistry
Instrument database: Elemental Scientific Inc. (ESI) - Membrane Desolvation
Vaccine ingredient causes brain damage; some nutrients prevent it | EVISA's News
Fractionation as a first step towards speciation analysis | EVISA's News
Instrument database: Teledyne Instruments Leeman Labs Inc. - Hydra AF Mercury Analyzer
Journals database: International Journal of Pharmaceutics
All about electrophoresis - Resources related to Electrophoresis | EVISA's News
Journals database: Acta Odontologica Scandinavica
Instrument database: Elemental Scientific Inc. (ESI) - Apex Q Quartz sample inlet system
Kelp manufacture contributed to arsenic pollution of remote Scottish islands | EVISA's News
Determination of Hexavalent Chromium in Soil Solution by Online Microdialysis-High-Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry (MD-HPLC-ICP-MS) | EVISA's News
Instrument database: Teledyne CETAC Technologies - Aridus II™ Desolvating Nebulizer System
Journals database: European biophysics journal: with biophysics letters
Instrument database: Dionex Corporation - ICS-1600 Standard Integrated IC System
Instrument database: Analytik Jena AG - mercur – Combined AAS/AFS spectrometer for mercury determination