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Instrument Database:
Techcomp (Holdings) Ltd. - GC7890II
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| Year of introduction |
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| Status |
available |
| Company |
Techcomp (Holdings) Ltd.
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| Categories |
Chromatography: GC
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GC7890II is a multi-function gas chromatography developed on the basis of GC7890I. It has the basic features of compact structure, automation, precise temperature control, plus the following add-on functions
- Improved temperature control of column oven. Imported impeller resolve the problem of dynamic balance ensure even temperature distribution, resulted in high repeatability.
- Five detectors are available: FID, TCD, ECD, FPD and NPD. Any two of them can be mounted at the same time.
- With Techcomp specialised GC software; single column temperature compensation. More stable baseline and measurement results are more accurate.
- Wide range of injector choice from packing injector, capillary injector to split/ splitless capillary injector and so on. Split/ splitless injector can eliminate tailing and ghost peak.
- With new detector design, sensitivity and linearity can be enhanced.
- According to International Safety Standard, GC7890II software enhances protection functions on preventing from excessive power supply and sudden power break.
- Automation and reliability have been improved with using programmable FPGA logic chip.
- The parameter set up can be stored for ten years with EPROM
- GC7890II has analog signal output interface and RS232 interface, with which the user can select various integrators and PC software to process data.
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| Specifications |
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Flame Ion Detector (FID)
Sensitivity: Mt=1×10-11g/s
Noise: =1×10-14 A
Linear range: =105
Max. temp: 399°C
Thermal Conductor Detector (TCD)
Sensitivity: S=2500mv.ml/mg
Noise: =20uV
Linear range: =104
Max. temp: 399°C
Electron Capture Detector (ECD)
Sensitivity: Mt=1×10-13g/s (BHC)
Noise: =15uV
Linear range: =5×103
Max. temp: 350°C (Ni63)
Nitrogen Phosphorus Detector (NPD)
Sensitivity: N: Mt=5×10-11g/s
P: Mt=5×10-12g/s
Noise: =2×10-13 A
Flame Photometric Detector (FPD)
Sensitivity: N: S=3×10-10g/s
P: Mt=5×10-11g/s
Noise: =20~30uV
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