Gas Chromatography

Electrophilic addition of bromine to acetylene (ethyne)

Principle
When bromine reacts with ethine (acetylene), the first step is the production of trans-1,2-dibromoethene. When more bromine is added, this reacts to form 1,1,2,2-tetrabromoethane. As a by-product of this reaction, cis

Gas chromatography

Principle

This educationally vivid complete experimental set-up of a gas chromatograph makes it possible to separate substances which are highly volatile at up to 100°C. A butane mixture is a suitable choice here, for example.
System components include such elem ...

Chromatographic separation processes: gas chromatography(with the Cobra3 Basic-Unit)

Principle:

Chromatographic procedures allow a separation of substance mixtures with the aid of a stationary separation phase and a mobile phase. In gas chromatography the mobile phase is a gas. The mobile phase, to which the mixture to be separated is added, transports ...

Chromatographic separation processes: gas chromatography (with the Cobra3 Chem-Unit)

Principle

Chromatographic procedures allow a separation of substance mixtures with the aid of a stationary separation phase and a mobile phase. In gas chromatography the mobile phase is a gas. The mobile phase, to which the mixture to be separated is added, transports the sub ...