Semi automatic headspace gas chromatograph

AS-16TSemi automatic headspace gas chromatograph

The principle of the instrument is to place the sample to be tested in a closed container, heat and raise the temperature to evaporate the volatile components from the sample, reach equilibrium in the gas-liquid (or gas-solid) phase, directly extract the upper gas for chromatographic analysis, and detect the volatile components and content in the sample.

1. Sample working position: 16 positions;

2. Power on self-test, fault alarm and prompt;

3. Microcomputer program control, with main functions including:

⑴ Method parameter setting, real-time animation display of working status, and running time;

⑵ The sample area, injection valve, and sample transfer tube are all separately heated and temperature controlled;

⑶ Set up the analysis program and press the run button to automatically complete the entire sample analysis;

⑷ It has multiple expansion functions: dynamic headspace, purge and capture, low-temperature cold trap;

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

4. Equipped with an external carrier gas regulation system, the GC instrument can be used for headspace sampling analysis without any modifications or changes. The original instrument carrier gas can also be used;

Using pressure equilibrium injection technology for headspace injection can obtain narrow chromatographic peak shapes;

6. The sample transfer tube and injection valve have automatic blowback function, which avoids cross contamination of different samples;

In order to make it more convenient and accurate to use with imported gas chromatographs, the sample injection valve and key components used in this instrument are all imported parts, and there are also interfaces for various imported instruments, which are easy to connect;

8. For active substance analysis, an elastic quartz tube can be selected as the sample transfer tube;

9. The injection volume can be adjusted according to the concentration of the sample to be analyzed by the customer;

10. The injection needle is easy to replace and can be connected to all models of GC injection ports at home and abroad.

AS-16TSemi automatic headspace gas chromatograph

Full Chinese 7-inch LCD display, easy to operate, one click start. The functions of automatic heating balance, pressurization, sampling, injection, analysis, and blowing after analysis, as well as the replacement of sample bottles, achieve full automation of the process.

20 samples can be pre-set, greatly improving time utilization. No manual intervention is required, improving the reliability and consistency of analysis work.

It has complete parameter settings, real-time working status, running time, etc.

Comprehensive power on self-test function, automatic positioning of sample tray, automatic alarm for component faults, wiring faults, etc.

Multiple injection modes: single bottle multiple times, single bottle single time, multiple bottles single time.

There are multiple fault diagnosis and handling modes, which can automatically determine the position of the sample bottle and avoid unfilled positions. In the event of a positional malfunction, it can prevent bottle collision. When mechanical motion is abnormal, it can automatically stop and prompt, effectively ensuring the reliability of high-precision motion and avoiding damage.

All sample transfer pipelines and quantitative rings use imported high inertia deactivation pipelines, with no residue or cross contamination, ensuring the repeatability and accuracy of sample injection.

The combination of a six way valve and a quantitative loop greatly reduces dead volume and ensures injection accuracy.

The connection point between the six way valve and the transmission pipeline is located inside the heating insulation box, without any transmission cold points, ensuring the integrity of the sample.

By using positive pressure sampling method, liquid or solid samples can be measured with high detection sensitivity. Inject at normal pressure without baseline drift.

All actions are driven by a motor, without the need for external driving gas, making it easy to use.

Strong compatibility, can be connected to various gas chromatographs at home and abroad, can synchronously start chromatography and workstations, and work together with chromatography.

Six way valves with different operating temperatures can be selected according to customer needs.

Chromatographic column: EO residual analysis column

Operating temperature: 200 ℃

Specification: 3mm * 2m

Standard concentration: 10mg/ml

Sample temperature: 110 ℃