·Features
1. Injector flow, column carrier flow, detector gas flow are controlled by EPC.
1.1 Micro-channel gas integrated board
1.2 Imported micro-ratio and flow/pressure sensor
1.3Temperature self-compensation to ensure the accurate flow, its pressure controlling can precise to 0.01Psi.
 
2. Industry-leading detector design.
2.1 All the detectors with high-precision electronic flow/pressure control.  
2.2 It can be matched with packed column and capillary column.
2.3 the amplified board after special ceramics treatment can keep stable in wet season.
 
3. It is safe and reliable with the functions of self-ignition and hydrogen leakage self-protection.  
4 Accurate tracking design for furnace temperature.
5 Accurate programmed heating control for the furnace temperature.
5.1 Inner temperature controlling precision: <0.01
5.2 Temperature between inner points: ≤1oC
5.3 Quick heating and cooling, the max programmed heating speed: 120oC/min, balance time: 10 sec, cooling time: 300oC-50oC for 6 minutes.
5.4 the temperature precision is absolutely controlled(compared with the real temperature, the difference is less than 0.3oC).
 
6 the achievement of gas circuit cutting technology 
6.1 Complex samples separation can be analyzed by multidimensional chromatography.
6.2 It saves the analysis time and period by blowback function of the chromatograph column.
 
7 Chromatographic columns can be heated individually, and the using temperature can be set according to the different columns, so that make every column separately. 
 
8 GC6891N adopts the advanced power distribution management shunt. One 3000-watt UPS can provide stable working power for 10 sets of GC with the normal power of 2250w/set.
 
9 GC6891N adopts the imported valve configuration system, which can carry 8 valves (4-way valve, 6-way valve, 10-way valve or liquid sampling valve) to automatically control and operate by sequence. 
 
10 GC6891N uses 8-digit auto-injectors (you can choose Agilent 7683/7693 liquid auto-injector). 
·Specification

Column oven
Furnace dimensions	28 x 30 x 18cm
Temperature controlling rang	Higher than the room temperature of 5oC-450oC, liquid nitrogen cold trap: -80oC-400oC,dry ice cold trap:-55oC to 400oC
Temperature setting precision	0.1oC
Max programmed heating speed	120oC/min
the longest method run time	999.99 min
the highest step of program	7 steps
Programmed heating rate	0.1-120oC/min(increment of 0.1oC)
Column loss can be compensated (dual channel column)
Heating area
Six individual controlling heating areas (do not content furnace temperature control, two injectors, two detectors and two auxiliary heating areas ).
the maximum using temperature in auxiliary heating areas	300oC
Detectors
FID
Maximum using temperature	450oC
Minimum LOD:	≤2.5pgC/s[n-C16]
Linear dynamic range	107(±10%)
Data collection frequency	Max 100 Hz
Adapted to packed columns and capillary columns
TCD
Maximum using temperature	400oC
Minimum LOD	<400 pgC3H8/ml(He)
Linear dynamic range	105(±5%)
Data collection frequency	Max 100 Hz
the design of monofilament TCD and micro-ECD, adapted to packed columns and capillary columns
FPD
Maximum using temperature	250oC
Minimum LOD	<4 pg S/sec,<1 pg P/sec
Linear dynamic range	>103S,>104P
Optional	105GS/gC,106gP/gC
Adapted to packed columns and capillary columns
ECD
Maximum using temperature	400oC
Type of gas compensation detector	5% methane/argon/nitrogen
Minimum LOD	<0.01 Pg/sec lindane
Linear dynamic range	>5 x 105
Data collection frequency	Maximum 100 Hz
Radioactive source	<12 mCi 63Ni
Adapted to packed columns and capillary columns
NPD
Maximum using temperature	450oC
Minimum LOD	<0.2 pg N/sec,<0.2 pg P/sec
Minimum LOQ	<3 pg C/sec
Linear dynamic range	105 N,105 P
Adapted to packed columns and capillary columns

·Application
GC6891N is widely used for the analysis of oil extraction and refining, petrochemical, fine chemical, food safety, environmental protection, electronic high-purity gas industry, scientific research institutes, QC, safety supervision, public security forensic and national security and so on.