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