Sample holding element for mass spectrometer

Sample preparation device

Sampler-injector for liquid chromatography

Sampling device and method for its use

Sampling device for collecting fume

Sampling device for mass spectrometric analysis

Sampling filter for chlorinated organic compounds

Sampling of hydrocarbons from geological formations

Sampling system for mass spectrometer

Sand filter cleaning apparatus and method thereof

Sand filter distributor nozzle

Sand filters

Sand shroud

Scale control in flue gas desulfurization

Scan testable filter housing assembly for exhaust applications

Scavengers for removal of acid gases from fluid streams

Scavenging filter

Scodaphoresis and methods and apparatus for moving and...

Scouring method

Scouring method