Headspace method gas chromatograph brand

Technical specifications of detector:

DK-9800Type automatic headspace sampler - gas chromatograph matching product, mainly used for volatile substances

Determination of residual volatile toxic and harmful substances in organic solvents, coatings, pharmaceuticals, etc

feature ：

1、 DK-9800 multi-mode headspace sampling device can be configured according to user requirements as follows:

2Integrated design, compact structure, easy to operate;

3The metal isothermal body heating temperature control headspace bottle has high temperature control accuracy, small gradient, good temperature consistency, and is simple and reliable.

4Microcomputer control, LCD Chinese character display, membrane keyboard, numerical input, main functions include:

⑴ LCD can display: method parameter settings, real-time working status, running time, year, month, day, hour, etc. at a glance;

⑵ The headspace bottle, injection system, and sampling (injection) catheter are all heated and temperature controlled;

⑶ 3External affairs, 8-level time program control, self starting and self stopping operation;

⑷ It has 9 methods for editing, storing, and calling at any time, achieving fast startup and analysis;

⑸ The GC and chromatographic data processing workstations can be synchronously started, and the device can also be started using external event programs;

⑹ The display board and program control board circuit have self checking function and fault display;

5Equipped with an external carrier gas regulation system, it can perform headspace sampling analysis without any modification or change to the GC instrument. If the original instrument is used for loading

Gas can be used as an automatic sampling system module for the device;

6A set of headspace sampling device can simultaneously supply several GC samples for analysis, greatly improving work efficiency;

7Through foreign affairs time programming, automatic functions such as pressurization (pumping), sampling, injection analysis, and post analysis blowback can be achieved;

8If the high-pressure injection principle (without a six way valve and quantitative tube) is used to reduce the adverse effects of valve injection;

9The sampling and injection transfer tubes have automatic blowback function, which avoids cross infection of different samples;

10For the analysis of active substances, a 0.53mm elastic quartz tube can be selected as the sample transfer tube;

11There are various specifications for sampling and injection needles, which can be easily replaced to meet the needs of different GC instrument injection ports;

12Easy to achieve multiple repeated injections of the same sample bottle, facilitating the development and research of methods;

13The key components used for driving are imported pneumatic components;

14Equipped with a measuring device to determine the sealing performance of the headspace bottle.

Technical performance indicators:

1Temperature control range in the sample area: room temperature -200 ℃ Assuming a heating power of approximately 400W with an increment of 1 ℃;

2Temperature control range of valve injection system: room temperature -160 ℃ Assuming a heating power of approximately 60W with an increment of 1 ℃;

3Temperature control range of sample transfer pipeline: room temperature -160 ℃ Assuming a heating power of approximately 40W with an increment of 1 ℃;

4Temperature control accuracy:<± 0.5 ℃ ；

5Temperature control gradient:<± 0.5 ℃;

616 headspace bottle workstations;

7Headspace bottle specification: standard 20ml

8Repeatability: RSD<1% (related to GC performance);

9Injection pressure range: 0-0.4Mpa (continuously adjustable);

10.Backblowing cleaning flow rate: 0-20ml/min (continuously adjustable);

11.Effective dimensions of the instrument: 360 × 200 × 360mm³；

12.The weight of the instrument is approximately 11kg.