Gas Chromatograph,Microcomputer System

Gas Chromatograph 1.Self-diagnosis system 2.Microcomputer temperature control system 3.Power-fail protection, Data storage

Gas Chromatograph

Introduction:

GC112A Gas Chromatograph

The Gas Chromatography is widely use for trace toxics analysis, monitoring and research in environmental protection, atmosphere and water source pollution;analysis, monitoring, research of toxicological; biochemistry; clinical application; pathology and virus research; food fermentation; Petroleum & Chemical; petroleum processing; oil analysis; geology, prospecting research; organic chemistry; synthesis; health and quarantine; analysis and research of public hazard detection .

Features:

1. Brand-new designed microcomputer temperature control system of world advanced control technology. High accuracy of temperature control (optimum: ±0.05°C), high reliability and anti-interference.2. Control and operating parameters (including for detectors) set up by the keyboard. Self-diagnosis system, power-fail protection, file storage and call, limited temperature setting. Accurate display of setting and actual value of temperature control of each path, bridge current of TCD, sensitivity of FID, retention and analysis time.3. Four paths of independent control sections: column oven, sample injector, detector and thermal conductive pond.4. 5-ramp programmed temperature rising control. Auto-drop of temperature of column oven (auto-opening the door behind the oven) to a fast cooling.5. Dual FID provided with options of GC112A-TCD, GC112A-ECD, GC112A-FPD and GC112A-NPD, gas sampling valve, transformation oven, absorber and pyrolysis absorber available for selection. Two detectors can be installed at the same time with high sensitivity. Short time to be stabilized and easy to clean and install nozzle.6. Packed column and capillary column (0.53 large diameter or small diameter) can be installed easily including a complete set of split sampling connector and tailing connector to be installed free of charge. Optional 0.53mm large diameter capillary direct sampler is available for choice.7. Analysis can be conducted in packed or capillary column with multiple sampling methods.8. Packed column: on-column sampling, instantaneous vaporized sampling and gas sampling.9. Capillary column: split sampling and 0.53mm large diameter capillary direct sampling.10. Construction of dual gas path, dual sample injector and dual packed column system can effectively avoid baseline undulation and drift in real time and facilitate programmed temperature rising analysis. Accurate and scaled type gas path control valves will provide a high repeatability and stability.11. Advanced functions: auto ON/OFF temperature control system, permanent data storage, file storage and call and over-temperature protection.12. Large volume column (300×280×270) can hold capillary column and dual packed column. Built-in heating filament structure is in favor of quartz capillary analysis.13. A complete set of accessories including purifier, pressure-reducing valve, gas path tube, wrench and tools, injection needle and connectors of all kinds are provided free of charge and are ready to connect with supply-air system prepared by user.

Specifications:

Temperature Control

Control Range	7°C~400°C above room temperature. (increment of 1°C)
Control Objects	Column oven, detector, thermal conductive pond and sample injector
Programmed Temperature Rising	5 ramps
Rate of Programmed Temperature Rising	0.1°C~40°C (increment of 0.1°C)
Thermostatic Time	0~655min (increment of 1min)

FID

Sensitivity (minimum testability)	M≤5×10-11g/s (sample: C16)
Optimum Testing Result	M≤1×10-11g/s
Noise	≤5×10-14A
Drift	≤6×10-13A/h
Linear Range	≥106

TCD

Sensitivity	≥2000mV·ml/mg
Noise	≤20μV
Drift	≤30μV
Linear Range	≥104

FPD

Sensitivity (maximum testability)	≤2×10-11g(P)/s (sample P in the parathion methyl) Optimum testing result ≤3.8×10-12g(P)/s.
Sensitivity (maximum testability)	≤1×10-10g(S)/s (Sample S in the parathion methyl) Optimum testing result ≤2.7×10-11g(S)/s.
Linear Range	≥103 (sample P parathion) ≥102 (sample S parathion)
Stability	≤30μV/h
Noise	≤10μV
Starting Time	Not greater than 2 hours

NPD

Sensitivity (maximum testability)	Dt(N) ≤5pg(N)/s Optimum testing result 0.5ppm
Sensitivity (maximum testability)	Dt(P) ≤0.5pg(P)/s Optimum testing result 0.2ppm
Drift	≤8×10-13A/h
Noise	≤5×10-13A/h
Linear Range	≥103
Max Application Temperature	360°C

Optional Accessories

1. TCD

2. FPD

3. NPD

4. CDP-4A data processor

5. Software with I/O port

Overall Dimension & Weight:

Shipping Package Dimension

(990×630×690)mm

Net Weight

50kg

Gross Weight

75kg

Gas Chromatograph,Microcomputer System