Headspace Sampler

The HT2000H headspace sampler features a full-color touch screen interface that simplifies instrument control for both novice and experienced users. The display shows all system settings and parameters graphically. The instrument offers one-touch operation for routine analyses. It also includes preventive maintenance counters and a vial leakage check headspace sampler.

The accuracy of headspace analysis results depends on a variety of factors. A thorough understanding of the procedure is necessary to obtain reliable results. For example, the volume of the headspace vessel should not be larger than the sample volume. If it is too large, the component may evaporate completely, dissolving the equilibrium. Another factor is whether or not the sample is collected from a rubber septum cap, which will affect precision and accuracy. More information on these issues can be found in specialist literature.

Headspace samplers are also sensitive to sample volumes. However, large differences in sample volume and temperature may be outside the permissible discretionary range in some regulated situations. The sensitivity of a headspace sampler is based on the distribution of the analytes in the sample volume.

To use headspace GC, it is important to understand the chemical system, sample preparation, and temperature. The headspace sampler helps prevent nonvolatile residues from accumulating and simplifies sample preparation. Headspace GC is a relatively inexpensive method for determining volatile substances in samples. The headspace sampler should also require minimal maintenance.

Headspace sampling can be performed manually, but dedicated headspace samplers offer better precision and lower detection limits. They can be automated or manual, and transfer the sample to a gas chromatograph using a gas sampling valve or a pressure-balanced system. Commercial headspace samplers trap gas samples on a sorbent. Common applications of the headspace technique include the determination of blood alcohol, flavors in food, and residual solvents in pharmaceuticals.

Headspace analysis uses a technique called headspace gas chromatography, which is simple to use and can handle a variety of sample matrices. Headspace samplers available from HTA range from dedicated instruments to all-in-one autosamplers. Some even feature automatic liquid sampling, headspace gas chromatography, and SPME injection techniques.

Headspace chromatography identifies volatile components in a sample by measuring the gas content of the sample in the headspace. This technique is ideal for sample cleanup, as the sample gas can be analysed and provided with chemical composition information. The process of headspace analysis is fast and easy, and is widely used in clinical labs.


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