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The headspace sampler is a convenient and quick sample preparation method in gas chromatography Autosampler Vials manufacturer china. The use of headspace sampling technology can eliminate the lengthy and cumbersome sample preparation process, avoid the interference of organic solvents on the analysis, and reduce the column and Contamination of the inlet.
The principle is that the sample to be tested is placed in a closed container, and the volatile component is volatilized from the sample matrix by heating, and the equilibrium is achieved in the gas-liquid (or gas-solid) phase, and the top gas is directly extracted for chromatography. Analyze to verify the composition and content of volatile components in the sample.
At present, there are five types of headspace analysis methods: manual mode, gas tight needle injection method, balanced pressure system, loop pressure system, and static-dynamic compensation. They each have their own characteristics.
Headspace sampler performance characteristics: 1, microcomputer control, Chinese display operation is simple, automatic injection. 2. The required temperature can be set according to the analysis requirements. 3, the key parts of the special treatment, can extend the service life, automatic backflush function, can easily purge the quantitative tube and sampling pipeline to avoid cross-contamination. 4. It can be connected with various types of gas chromatographs at home and abroad.
In general, the Headspace Sampler eliminates complex, Autosampler Vials manufacturer china error-prone steps compared to other GC sample processing techniques. It allows you to get a lot of useful information in a short period of time.
This is the end of the introduction of Introduction to the working principle of the headspace sampler. I hope it can help you.
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