Fully automatic blowing and capturing deviceIt is an efficient and accurate sample pretreatment equipment widely used in environmental monitoring, food safety, pharmaceutical and chemical industries, especially for trace analysis of volatile organic compounds (VOCs) and semi volatile organic compounds (SVOCs). Its core working principle is based on a three-stage process of "blowing capture analysis": firstly, the sample is continuously blown with high-purity inert gases (such as nitrogen and helium) to transfer the target component from the liquid or solid phase to the gas phase; Subsequently, the airflow containing VOCs is passed through a capture tube filled with adsorbents (such as activated carbon, polymer resin) to achieve concentration and enrichment of the target substance; Finally, the capture tube is rapidly heated to allow VOCs to undergo thermal analysis and enter gas chromatography (GC) or gas chromatography-mass spectrometry (GC/MS) for qualitative and quantitative analysis along with the carrier gas.
Fully automatic blowing and capturing deviceThe main characteristics are:
1. Fully automated operation: These devices can automatically complete the entire process from sample injection, blowing, capture to analysis, greatly reducing the need for manual intervention and improving experimental repeatability and efficiency.
2. Multi station design: supports multiple sample grades, can continuously process samples in batches, improves laboratory throughput, and is suitable for large-scale testing needs.
3. Solid liquid integrated compatibility: One machine for multiple uses, capable of processing liquid and solid samples without the need to replace modules, simplifying the workflow.
4. High sensitivity and low cross contamination: VOCs are blown out of the sample and enriched in adsorption traps using inert gases such as nitrogen. Then, during the desorption stage, the adsorption trap is rapidly heated to allow VOCs to undergo thermal desorption and enter the GC/MS system for detection. The entire process ensures low background noise and high sensitivity, while reducing cross contamination between samples.
5. Intelligent control and compatibility: Integrated touch screen or software control system, users can program different parameters (such as blowing time, temperature, flow rate, etc.) according to their needs, and are compatible with multiple international standard methods (such as EPA 5030/8260).
6. Energy saving design: Some advanced models adopt revolutionary room temperature capture technology, which reduces energy consumption without sacrificing performance, and eliminates the influence of water vapor on analysis results through dynamic water removal technology.
7. Easy maintenance: Easy to replace consumables such as capture pipes, filter cotton, and sealing gaskets, making daily maintenance simple and convenient.
8. Efficient capture capability: Using high-performance adsorbent materials such as Tenax, activated carbon, etc., it can effectively concentrate target compounds and achieve accurate determination of trace pollutants.
9. Strong adaptability: Suitable for volatile substance analysis in various types of samples, including but not limited to drinking water, wastewater, soil, food, pharmaceuticals, and other fields.
10. Security protection mechanism: It has multiple protection mechanisms, such as temperature overload power-off protection, leakage protection, and self diagnostic function during startup, to ensure the safety of instrument operation.