Brief description: The automatic headspace gas chromatograph has 9/12 stations to choose from and is used for trace residue detection in samples, such as drinking water, wastewater, detecting volatile organic compounds in food, drugs, blood, soil, water, mud, cosmetics, soap, packaging, metal foil, paper, mineral mud, spices, etc.
Automatic headspace gas chromatographCommon application areas:
1. Petrochemical industry: high polymer monomer coatings, volatile organic compounds, etc;
2. Environmental science: volatile halogenated hydrocarbons in drinking water and organic toxic volatile compounds in industrial wastewater;
3. Hygiene and epidemic prevention: residual disinfection and fumigation of medical supplies(EO)analysis
4. Food industry: quality control of Baijiu, vinegar and soy sauce, acetaldehyde residue in beverage bottles, solvent residue in food packaging materials, and extraction oil6#Analysis of solvent residues, etc;
5. Spice essence: flavor analysis of beer and tea;
6. Quality inspection of drugs: organic residual solvents in drugs;
7. Forensic chemistry: determination of alcohols, ketones, and aldehydes in blood and urine, analysis of blood ethanol;
8. Tobacco Industry: The Influence of Cigarette Strips and Box Packaging PaperOrganic compounds(VOC)The determination
9. Other: volatile organic compounds in soil, etc;
Automatic headspace gas chromatographFeatures:
1. The heating area of the empty sample bottle adopts a circular design to create a temperature gradient between different hole positionszuiMiniaturization improves the stability of analysis results;
2The sample valve, quantitative tube ring, and sample transmission pipeline can control the temperature to avoid condensation of the sample during transmission;
3. The sampling pipeline and injection valve are equipped with cleaning function to prevent cross contamination;
4. Pressure balanced headspace injection(Optional installation of quantitative tube ring injection)Automatic pressurization, automatic injection, and automatic cleaning;
5. The headspace injection adopts an automatic needle injection method, which only requires manual adjustment of the injection disk to switch the injection bottle. It is economical, practical, and simplifies the operation, ensuring the consistency and reliability of the experimental results.
Technical Indicators:
1. Temperature indicators for headspace bottle heating zone, valve, transfer pipeline, and quantitative tube
2. Temperature range: room temperature—200℃(increment1℃)
3. Temperature control accuracy: superior to±0.1°C
4. Headspace bottle workstation: 9 a/12Optional;
5Headspace bottle specifications: standard20ml ( 10ml 50mlCustomization of specifications is available);
6. Quantitative tube volume:1ml
7Backblowing cleaning flow rate:0~20ml/min (continuously adjustable);
8. Injection pressure range: 0~0.4Mpa(continuously adjustable)/8Pressurization time:0-99minStep size0.01min
9. Quantitative tube filling time:0-99minStep size0.01min
10. Injection time:0-99minStep size0.01min
11. Repeatability:RSD≤1.5%.
Application example:


Injection method: Headspace sampler+Split injection
Detector:FID
Peak order:1Ethylene oxide;
Applicability: Detection of residual ethylene oxide in drugs and masks.