New GC-9890A gas chromatograph

Junqi Instrument GC-9890A Gas Chromatography Parameters

* Main features

1. The host comes with a two-way valve control system, which facilitates online automatic sampling.

2. The inter column compensation circuit electronically compensates for baseline drift during program temperature rise, reducing the complexity caused by the second column, detector, and auxiliary flow system.

3. The signals from the detector, heater values, furnace temperature, flow sensor readings, or stored column compensation baseline signals can all be assigned to a simulated output channel.

4. Self testing and fault diagnosis, experimental data stored for power-off protection, stopwatch and running timer, keyboard locking function.

5. Can be connected to a reverse control workstation to achieve real-time control, and can store 100 sets of experimental conditions and spectra.

6. Can install the American HP-5890 gas chromatograph micro thermal conductivity detector to achieve * docking.

7. Can install two flow sensing channels and two single column compensation channels.

Heating furnace system

Temperature range: ambient temperature+5 ℃~400 ℃, third-order programmed heating, heating rate 0-50 ℃/min; increase

Measure at 0.1 ℃/min. The temperature control accuracy is ± 0.05 ℃, and the furnace temperature can be recalibrated by the user, and the Z high temperature can be set arbitrarily.

The intelligent rear door opening system has stepless variable air flow in and out, which shortens the stable balance time of the system after heating/cooling. The time taken for the column box to drop from 300 ℃ to 50 ℃ is less than 6 minutes.

Sample injection system

1. Filler column sampler: suitable for various caliber filler columns and large-diameter capillary columns

2. Capillary sampler: optional shunt/non shunt system controlled by programming valve

3. Optional options include our company's headspace sampler and thermal analyzer.

Detector system

1. Hydrogen flame ionization detector (FID):

Easy to disassemble and install, convenient for cleaning or replacing nozzles, simple to operate; The input signal can be logarithmic amplified, reducing interference, with high sensitivity, good linearity, and wide range.

Sensitivity: Type A Mt ≤ 5 × 10-11 g/s (n-hexadecane)

Baseline noise: ≤ 6 × 10-12 A/H

Linear range: ≥ 105

Stable time:<0.5h

2. Thermal conductivity detector (TCD):

Sensitivity: Type A: ≥ 4000mv? Ml/mg (n-hexadecane)

Baseline noise: ≤ 30 μ v (with a carrier gas of 99.999 helium)

Stable time: Type A<1.5h gas cut-off protection

3. Electron Capture Detector (ECD):

Detection limit: Mt ≤ 1 × 10-13 g/ml (r-666)

Junqi Instrument Equipment (Shanghai) Co., Ltd. is a high-tech company specializing in the research and development, manufacturing, and sales of chromatographic analysis instruments, gas chromatographs, automatic headspace samplers, and nitrogen hydrogen air generators. Our company's technical personnel are composed of engineers with many years of experience in the analytical instrument industry, dedicated to providing comprehensive chromatographic analysis solutions for our customers and solving their practical problems.

At present, our company has good cooperation with many domestic universities, research institutions, enterprises, etc. We can provide selected analysis solutions based on user needs; Optional instruments and dedicated chromatography columns; We provide comprehensive pre-sales and after-sales services for laboratory instrument installation, training, maintenance (users can provide samples, which will be tested and analyzed by our laboratory center), and operator training.

In addition, our company also provides various spectrometers, chromatography workstations, consumables for chromatography, capillary chromatography columns, thermal analyzers and other chromatography supporting products and spare parts. From scientific research institutions to human life, pharmaceuticals, chemicals, security checks, food safety, petrochemicals, natural gas, chromatography applications are very extensive;

Junqi Instrument adheres to the principle of "striving for excellence" and "service first" in technology to create benefits for customers. Our company has summarized a batch of practical analysis and solution cases based on years of close contact with corporate clients, and formulated gas chromatography application solutions to solve practical problems for clients in less time; In addition, our company also has an application laboratory that can customize analysis methods for users and complete sample pre analysis test spectra.