GC772x series of Gas/Liquid Chromatographs precisely separates the constituents present in an injected gas/liquid sample. Along with WinQCDS - Quazar Chromatography Data Acquisition-Analysis Software , it becomes really a very versatile, user-friendly and a powerful chemical analysis tool.
Take a look at the critical specifications of GC772x series of Gas/Liquid Chromatographs.
Oven temperature range 2o C above ambient to 450o C.
Temperature stability 0.03o C.
Minimum detectable limit less than 5 pg of carbon as ethylene using N2 carrier.
Linear dynamic range 107 .
WinQCDS 9.0 an advanced instrument Control and Data Analysis Software.Versatile peak detection & editing tools.
Bunching, Savitsky, Golay & Adaptive Filtering for noise reduction.
Precise Area calculations algorithms.
Choice of split-less &/or split injectors.
Rapid auto cooling of oven without door opening.
Auto flame out protection.
State of the art electro-pnenumetic flow control.
EPC pressure stability 0.005 psi.EPC flow stability 0.005 ml/min.
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Oven
Operating Temperature Range 4°C above ambient to 450ºC
Temperature Control PID type
Temperature Programming 7 ramps from keypad & as many as desired from PC
Skin temp.(at temp. 450ºC) Less than (ambient + 20ºC)
Cooling rate (450ºC to 70ºC) <9 minutes
Volume of the inner oven 15 L (23.5 X 24.5 X 26.0 cm³)
Max. Temp. gradient +/-0.5ºC (over the column)
Temperature Stability 0.03ºC
Temp Set-point Resolution 1ºC
Ramp Resolution 0.1ºC/min
Ramp Rates(Oven)
Temp. range( ºC ) Ramp rates(ºC/Min )
50-70 >70
70-115 >50
115-175 >45
175-300 >40
300-400 >25
400-450 >15
Flame Ionisation Detector (FID)
Max. Operating Temperature 450ºC
Temp Set-point Resolution 1ºC
Minimum Detectable Limit <5 pg of carbon/s as ethylene 2 carrier
Sensitivity 0.008 Coulombs/gC
Linear Dynamic range 107
No. of settings for enhanced/attenuated sensitivity 2 (0.1 & 0.01µAFS)
Sampling rate 10/50Hz
Noise @ 10Hz & 10,000pA F.S. <5µV(50fA)
Auto flame out protection Yes
Injectors
Inlets available Split / Splitless with purge
Max. Operating temperature 450ºC
Temperature Control PID type
Temp Set-point Resolution 1ºC
Installation Requirements
Dimensions 79cmx50cmx51cm (BxDxH)
Power Requirement 220Vac/50Hz (stabilized) 3KVA max.
Operating Temperature 0ºC to 50ºC
Weight 48Kg
Electro-Pneumatic Flow
Modes of operation
Pressure stability < 0.005 psi
Flow stability < 0.005 ml/min.
Max. Pressure Control Point 100 psi
Max. Flow Control Point 100 ml/min.
Flow/Pressure Programming
Number of ramps & holds As per user requirement
Number of lines Controlled 5 (packed) & 7 (capillary)
Computer Controlled Operation
Number of login levels 3
Monitoring Resolution
Flow 0.000001 ml/min.
Pressures 0.000001 psi
Temperatures 0.01o C
System Noise, Wander, Drift
Background Current < 8 pA @ 500C
Wander < 0.5 pA
Iso-thermal drift < 0.1 pA in 1 hour
Drift under temperature programming from 50o C to 200o C @ 10o C/min <2 pA
(The drift due to coloumn bleed is much larger.)
For more information and purchase-RELATED QUERRIES, please send us an enquiry here .
For more information and purchase-RELATED QUERRIES, please send us an enquiry here .
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