Characteristics and precautions of automatic purging and trapping device

The automatic purge and trap device is an efficient and precise sample pretreatment equipment. The following is a detailed introduction to this device:

An automatic purge and trap device typically consists of a purge device, a trap, and a desorption system. The purge device is used to introduce purge gas (usually an inert gas such as high-purity nitrogen or helium) into the sample. The trap is used to enrich volatile components, while the desorption system is responsible for releasing the trapped volatile components and sending them into an analytical instrument, such as a gas chromatograph (GC), for qualitative and quantitative analysis. In addition, some advanced fully automatic purge and trap devices are equipped with an autosampler to enhance the automation level of analysis.