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Instrument Database:
Techcomp (Holdings) Ltd. - GC7900
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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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7900 GC is the latest model of gas chromatography developed by Techcomp, with compact design and outstanding performance
- 7900 has 9-step temperature programming, with maximum heating rate up to 39°C per second.
- Three injection ports and three detectors can be mounted at the same time.
- Large LCD screen display all operating conditions and detection signals.
- Gas path are controlled by valve with a series of ON/OFF valve switch to ensure safety and reliability.
- Built-in data acquisition board to control 7900 gas chromatography and perform data analysis by PC through RS232 interface.
- Gas pressure is controlled and regulated by the latest advanced technology to ensure accuracy down to 0.1psi
- Compared with convention gas chromatography, detector sensitivity has been enhanced to attain to the international standard
- Printed circuit board has adopted 4-layer surface-mounting technique to make 7900 more stable and reliable.
- 7900 can also provides its flexibility to interface with IR and Mass Spectrophotomete
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| Specifications |
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Oven:
Temp. range: Ambient + 5°C ~ 399°C
Temp. stability: 0.5%
Programmed temp. repeatability: 2%
Heating rate: 39°C /min (200°C)
20°CC /min (200°C)
Flame Ion Detector (FID)
Temp. range: Ambient + 5°C ~ 399°C
Detection limit: 5*10-12 g/s
Noise: 5*10-14 A
Thermal Conductor Detector (TCD)
Temp. range: Ambient + 5°C ~ 350°C
Sensitivity: S 10000mv.ml/mg
Noise: 0.03mV
Electron Capture Detector (ECD)
Temp. range: Ambient + 5°C ~ 350°C
Detection limit: Mt 3*10-14g/s (BHC)
Noise: 0.015mV
Nitrogen Phosphorus Detector (NPD)
Detection limit: N: Mt 5*10-12g/s P: Mt 5*10-12g/s
Noise: 2*10-13 A
Flame Photometric Detector (FPD)
Detection limit: 1*10-10g/s (S); 1*10-11g/s (P)
Noise: 8*10-11 A
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