summary:

AHS-920AseriesFully automatic headspace samplerOur company has developed and launched a product with high sample count, high heating count, fully automatic, compact structure, and convenient human-machine interactionFully automatic headspace samplerThe principle is to place the sample to be tested in a closed container, heat and raise the temperature to make the volatile components in the sample evaporate from the sample matrix. After reaching equilibrium, the upper gas is directly extracted and sent to post-processing equipment such as gas chromatography for analysis, thereby detecting the composition and content of volatile components in the sample.

Performance indicators:

1Temperature control range of headspace furnace: room temperature~260 ℃, step size 1 ℃

2 Temperature control range of valve injection system: room temperature~220 ℃, step size 1 ℃

3. Temperature control range of sample transfer pipeline: room temperature~220℃Step size1℃

4. Temperature control accuracy:< ±0.1℃

5. Temperature control gradient:< ±0.1℃

6. Headspace furnace number of workers:6position

7. Headspace bottle workstation:80station/120position

8. Headspace bottle specifications: standard20ｍl（10ｍlSpecifications can be customized)

9. Injection pressure range:0～0.4Mpa, continuously adjustable

10 Monitoring pressure range: 0-0.4Mpa, pressure gauge display

11. Analyze repeatability:RSD<1.5%（200ppmEthanol aqueous solution, andGCPerformance related)

12. Power supply:AC220V 50Hz

13. Power:600W

Main functions and features:

1. All in allAutomatic system, safe and reliable, one click operation, can be unattended

2. Modular design of software and hardware, compact structure

3 The software interface is rich in information, with simple human-computer interaction and easy operation. It has the following functions:

3.1. Display information includes: multi method parameter settings, real-time working status, running process and time information, etc;

3.2. The headspace bottle, injection system, and sampling (injection) catheter are coordinated through software to achieve three-way heating and temperature control;

3.3. 10Provide methods for editing, storing, and calling at any time;

3.4. Can start synchronouslyGCThe chromatographic data processing workstation can also be activated by external event programs to achieve multiple repeated injections of the same sample bottle;

3.5. It has self checking function (board level and gas circuit) and fault display function.

4Automatic positioning of the sample disk and real-time display of the disk number on the software end

5. Allow continuous addition of samples during the experimental process without the need for resetting or interrupting the original experimental sequence, flexible and convenient

6The sample transfer tube (including sampling needle) and injection valve have automatic blowback function, which avoids cross contamination of different samples

7 The combination of a six way valve and a quantitative loop effectively reduces dead volume and improves analytical sensitivity

8 The six way valve and transmission pipeline link have no transmission cold points, ensuring the integrity of the sample

9. Support dual channel injection function for the same sample (user selectable)

10 Support the installation of sample bottle oscillation function, shorten balance time, improve sensitivity and repeatability (user selectable)

Common application areas and examples of headspace injection gas chromatography analysis

Headspace injection can adapt to samples mainly including liquids, solids, and mixtures, such as volatile organic compounds in drinking water, wastewater, tested food, drugs, blood, soil, water, mud, cosmetics, soap, packaging materials, metal foil, paper, mineral mud, spices, and so on. The commonly used fields currently include:

1. Petrochemical industry: Determination of volatile organic compounds in polymer monomer coatings, etc

2. Environmental Science: Determination of volatile halogenated hydrocarbons in drinking water and organic toxic volatile compounds in industrial wastewater

3. Hygiene and Epidemic Prevention: Analysis of Disinfection and Fumigation Residues in Medical Supplies

4. Food industry: quality control of colored wine, vinegar, soy sauce, analysis of residual acetaldehyde in packaging materials, and residual solvent 6 # in extracted oil

5. Spice essence: analysis of aroma in beer and tea

6. Quality inspection of drugs: analysis of organic residual solvents in drugs

7. Forensic Chemistry: Determination of Ethanol, Ketones, and Aldehydes in Blood and Urine.

Shanghai Jinghe Analytical Instruments welcomes new and old customers!!