Chemical preconcentrator with integral thermal flow sensor
Chromatograph having a gas recycling system
Chromatographic stationary phases and adsorbents from hybrid org
Chromatography column assembly
Closing element intended for closing off an end of a capillary g
Closure systems for chromatographic columns
Compact thermal conductivity detector
Compliant column sheath assembly for gas chromatography
Concentrator apparatus for detecting trace organic components in
Contrasty light-sensitive silver halide material containing a hy
Cubic regular grain photographic reversal emulsions