Design Features

The narrow (0.5-1.5 mm i.d., volume 15-150 |L), low thermal-mass injector liner ensures rapid heating and fast carrier flow. The insert is packed to retain sample droplets and, because the packing is fairly dense (for good thermal conduction), there is a seal between liner and injector body to ensure carrier passes through the liner. The packing can be glass fibre or beads for low retention (e.g. analysis of involatile materials), or porous materials such as Chromosorb (possibly coated with liquid phase) for greater retention. There is a facility for rapid cooling (e.g. by air flow) before injection, and the heater control can include a low temperature thermostating option for selective solvent removal. The septum is usually kept permanently cold, otherwise construction is similar to that of conventional vaporizers.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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