Headspace sampler analysis - Database & Sql Blog Articles

The diameter of the domestically produced P75-E2 head nickel-plated needle is 1.02 mm. The total length of the thimble needle is 38 mm.

KT2520K26000DCW28QAS import spot

Photocoupler module for signal isolation and transmission

Headspace Sampler

This device connects to a gas chromatograph via a dedicated nine-core interface.

All parameters can be controlled by the host system. The headspace sampler is primarily used for analyzing residual solvents. It works by heating the sample to release volatile components into the headspace, which are then analyzed using gas chromatography.

The headspace sampler is highly versatile and can be connected to various gas chromatographs. It serves as an efficient sampling tool for directly transferring volatile compounds from liquid or solid samples into the chromatograph. By using gas injection, it collects volatile substances in a controlled manner. Compared to traditional extraction methods, this technique minimizes the loss of volatile compounds during solvent removal and reduces background noise caused by co-extraction. Its high sensitivity, fast analysis speed, and reduced risk to both the analyst and the environment make it an eco-friendly and user-friendly option.

Headspace analysis measures the concentration of volatile components in the original sample by analyzing the gas phase above the sample matrix. This is essentially an indirect method based on the principle of equilibrium between the gas and condensed phases under specific conditions. As a result, the composition of the gas phase reflects that of the condensed phase, making headspace analysis akin to a gas-phase extraction technique. It is therefore an excellent method for sample purification.

As an analytical approach, headspace analysis is straightforward because it only involves analyzing the gas phase, significantly reducing matrix interference. It is also one of the simplest sample preparation techniques. Additionally, it offers multiple modes that can be optimized for different types of samples. The sensitivity of the method meets regulatory requirements, and when combined with quantitative capabilities, it provides accurate and reliable results. Overall, headspace analysis is a powerful and environmentally conscious technique widely used in modern analytical chemistry.