Injection septum with dust wiper

Large-sample accessory for a gas chromatograph

Macrocyclic polyamines as sensitizers for silver halide emulsion

Management device for gas chromatography sample concentration

Material for capturing chemical substance, method for...

Method and apparatus for selective capture of gas phase...

Method of preparing a blend of fogged, direct-positive silver ha

Methods and systems for characterizing a sorbent tube

Microfabricated microconcentrator for sensors and gas...

Microfabricated packed gas chromatographic column

Micromachined analyte trap for gas phase streams

Microstructure chromatograph with rectangular column

Non-planar microfabricated gas chromatography column

Organophosphine sulfides as photographic sensitizers

Oven air flow director

Oven housing module in an analytical instrument

Portable gas chromatograph

Precolumn separator for gas chromatograph

Process for sensitizing a fine grain silver halide photographic

Process for the stabilization and antifogging of photographic si