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- 产品名称：Gas chromatograph
- 产品型号：GC522
- 产品展商：Wufeng, Shanghai
- 产品文档：无相关文档
简单介绍
The performance of the microcomputer temperature control system with excellence, control of international advanced technology, high precision (less than 0.05 DEG C), high reliability, strong anti-inte
产品描述
Product number: GC-522
Advanced computer system, excellent control function
The performance of the microcomputer temperature control system with excellence, control of international advanced technology, high precision (less than 0.05 DEG C), high reliability, strong anti-interference ability; has 5 independent temperature control area, the highest temperature can reach 400 DEG C; limit temperature setting and overtemperature protection function to ensure the safe operation of equipment.
Set a variety of parameters in the whole control and the use of Chinese keyboard (including the detector operating parameters), logical, easy to operate; the machine has self diagnosis, 10 kinds of power protection, storage and file method calls, 2 external event control, temperature control timing startup and shutdown procedures, detector setting, time, range, polarity and current set and display, can display the various temperature setting value, actual value, retention time and analysis.
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Sampling system flexible, meet a variety of requirements analysis
The instrument can be installed at the same time as many as three injector, according to the requirement of the analysis instrument can choose the best combination of the injector, and each unit can independently control the injector, simple disassembly.
Single / double column packed column injector:
Can be packed column column, suitable for a variety of chromatographic column; 6 increase in valve for gas sampling analysis; use of connectors in packed column injector, can easily complete the analysis of 0.53 wide bore capillary column.
Provide 3 kinds of capillary column inlet system, capillary column are suitable for all kinds of:
A) using the connection column injector on modified capillary column injector filled in double back pressure valve, shunt regulator;
B) special capillary column injector, with diaphragm blowing and back pressure valve shunt regulator.
C) special capillary column split / splitless injector, independent carrier flows and tail blowing, blowing with the diaphragm and the back pressure valve shunt regulation, cleaning imported electromagnetic valve, through the preparation of a program to achieve time capillary column split / splitless.
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High sensitivity and high stability of detector
The instrument can be installed at the same time as many as three detectors, such as FID, TCD, ECD detector etc.. According to the analysis of the application of the different combination, can achieve convenient detector in series and parallel work.
The new FID has a lower detection limit, which is convenient for disassembly, cleaning nozzles and ion collection, accurate fixed emitter installation structure to ensure each instrument performance highly consistent.
The high sensitivity of TCD with high resistance of tungsten rhenium, and provide 2 times the electronic amplifying circuit, the sensitivity can be as high as 5000mV, mL/mg, unique air insulation structure that TCD has higher stability.
The constant current source modulated ECD pulse, sensitivity, selection of current computer.
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High precision double stable gas path, large capacity and high performance column box
Regulator valve and valve double steady flow stability design of carrier gas flow path using hydrogen and air flow path; the regulator valve and needle valve stability control mode, flow valve and needle valve adopts digital dial knob, with high accuracy, good repeatability, high reliability and easy to adjust flow straight view.
Large capacity column box can be conveniently installed and can accommodate double capillary column and packed column; column box with rapid heating and rapid cooling automatically after the opening mechanism (7 minutes from 350 DEG ~50 DEG), and can realize the - room temperature control box, temperature programmed column 5 order 6 platform.
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A variety of free accessories, free installation
The instrument offers a full set of accessories installation use, such as air purifier, pipes, wrench tools, needles and all kinds of joints, the user only to source can. These accessories are not required to pay another.
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The data processing system of the rich, that you are free to choose
A) the data acquisition board type, the use of software on a computer workstation based flow monitoring, compensation, single column chromatography data processing;
The composition of B) chromatography workstation completely independent of external dual channel data acquisition box and intelligent software, whether it is floating on the signal or signals can also fast and accurate data acquisition;
C) RS232 communication board and software and workstation connected to achieve two-way communication and control with the host, to complete the temperature and detector parameters setting and monitoring on a computer, data processing and parameter setting;
D) chromatographic simulation software unique, on the computer simulation to find the best operating conditions of chromatography, chromatography, chromatographic simulation teaching and training knowledge base etc..
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The main technical index of the instrument
temperature control
Temperature range: room temperature of 7 DEG ~400 DEG (incremental 1 c)
The temperature control object: column box, detector, TCD, injector, auxiliary
Cheng l order: Five Order
Cheng Sheng rate: 0.1 DEG ~40 DEG /min (0.1 DEG increments)
Constant temperature time: 0~655min (delta 1min)
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Hydrogen flame ionization detector (FID)
Sensitivity: M = 1 * 10-11g/s (C16)
The best test results: M = 8 * 10-12g/s (C16)
Noise: less than 5 * 10-14A
Drift: less than 6 * 10-13A/h
The linear range is greater than or equal to 106
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Thermal conductivity detector (TCD)
Sensitivity: mL/mg = 2500mV (C16)
Noise: less than or equal to 20 mu V
Drift: less than or equal to 30 mu V/h
The highest sensitivity: 5000mV - mL/mg (electronic amplification)
The linear range is greater than or equal to 104
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Electron capture detector (ECD))
Detection limit: 10-13 = 2 * g / S (r-666)
The linear range is greater than or equal to 103
Maximum temperature: 350 degrees