HRGC Gas Chromatography

Gas Chromatography 1.With the wide applications 2.Brand-new designed high-performance HRGC 3.Construction of dual gas path

  Gas Chromatography

Introduction:

 

GC122 HRGC High Resolution Gas Chromatography  

 

With the wide applications :

1)Trace toxics analysis, monitoring and research in environmental protection, atmosphere and water source pollution; 2)Biochemistry, clinic application, pathology and toxicology research; 3)Microorganism analysis and research in food ferment, and microelements analysis in beverage; 4)Intermediate and finished product analysis in Chinese and western medicine materials; 5)Crude oil composition analysis and control in petroleum processing, petrochemical industry, petroleum geological industry, and geological prospecting research; 6)Component research and production control in organic chemistry and organic synthesis; 7)Analysis and research in sanitary quarantine, labor protection, and hazard detection; 8)Monitoring, control and research in cutting-edge science and military technologies.

 

Main Features:

Brand-new designed high-performance HRGCDual FID provided with options of GC122 -TCD, GC122-ECD, GC 122 -NPD and GC122-FPD, gas sampling valve, transformation oven  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. Three kinds of detectors can be installed.According to different applications, combination of different detectors including series connection and parallel connection can be used.A complete capillary analysis system, independent of the capillary split injection device (including membrane cleaning, separation and tail blowing conditioning) provided with options of shunt/ splitless capillary injector, cold-column injector, 0.53mm large diameter capillary direct sampler. Adapted to various kinds of flexible caliber, size and length of the capillary column in glass, quartz glass,etcAccurate and scaled type steady flow valveregulator valve and needle valvein gas path control valves will provide a high repeatability and stability.  Multiple sampling methods as the following:Packed column: on-column sampling, instantaneous vaporized sampling and gas sampling. Capillary column: split sampling and 0.53mm large diameter capillary direct sampling. Brand-new designed microcomputer temperature control system can simultaneously control temperature of six heated zones Road-pillar boxes, ionization chamber, thermal conductivity detector, capillary injector, packed column injector auxiliary (standby), with the high precision (better than ± 0.1 °C) a wide range (up to 400 °C), temperature overshoot and the deviation is less than 2 °C or lower 5-ramp programmed temperature rising control,the maximum heating rate up to 40 °C/ min Power-off protection, the temperature limit is set, the temperature scan, auto-drop of temperature of column oven (auto-opening the door behind the oven) to a fast cooling. Open-end computer system can apply RS-232 interface and FJ-2000 chromatogram workstation to achieve dual path communication control and data processing. Large volume column (350x280x300) can hold capillary column and dual packed column. Built-in heating filament structure is in favor of quartz capillary analysis.

Main Parameters:

 

Temperature control range	7°C-400°C of room temperature (increment by 1°C)
Temperature control objects	column, ion chamber, thermal conductivity, sampler A, sample B, auxiliary (standby)
Temperature programming phase	five phase
Temperature programming rate	0.1°C-40°C/min(increment by 0.1°C)

 

Flame Ionization Detector (FID)

Sensitivity	M≤1×10-11g/s(sample: C16)
Optimal test result	M≤5×10-12g/s
Baseline noise	≤5×10-14A
Baseline drift	≤6×10-13A/h
linear range	≥10E6

 

 Optional Dedectors:

Model	Name of Detector	Technical Standard	Characteristics
GC-122-TCD	TCD	Sensitivity S≥2500mV.ml/mg (Carrier gas H2;Sample:Hexadecane ); Baseline noise≤20μV; Linear range≥104	Use of rhenium tungsten wire, constant current source, differential amplifier circuit, micro-pool size.
GC-122-ECD	Electron capture detector	Limit of detection:Mt≤2×10-13g/s (Sample:Hexaneσ-666); Baseline noise:≤10μA Linear range:≥103	Nickel -63 radioactive sources, the working temperature reach to 350 °C. Have extra high sensitivity in halogen compounds
GC-122-FPD	Flame photometric detector	Detection limit: For P: Mt≤2×10-11g/s Sulf:Mt≤1×10-10g/s Baseline noise:≤10μA Linear range:phosphorus≥103  Sulf≥102	Double-flame structure, using optical fiber as the optical signal transmission line , greatly reduce the impact of electrical components under the high temperature ,used in the analysis of the trace phosphorus, sulfur

  

HRGC Gas Chromatography