Model NO.: GC6891N
Stationary Phase: Liquid Solvent
Mobile Phase: Gas
Chromatography Type: Gas Chromatography
Chromatographic Column Type: Capillary Column
Chromatographic Column Length: 30m
Chromatographic Column Diameter: 0.2~0.5mm
Furnace Dimensions: 28 X 30 X 18cm
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
Trademark: Kejie
Transport Package: Wooden
Origin: China
GC6891N Gas Chromatography Analyzer / Laboratory Instrument with High Quality
.Instruction
The GC6891N is a high-end gas chromatograph designed for laboratory use, developed according to international standards. It integrates advanced technology and application experience, offering features that are at the world's leading level in terms of performance, reliability, and sensitivity.
.Features
1.1.1 Micro-channel gas integrated board
1.1.2 Imported micro-ratio and flow/pressure sensor
1.1.3 Temperature self-compensation ensures accurate flow control, with pressure precision up to 0.01Psi.
1.2 Industry-leading detector design.
1.2.1 All detectors feature high-precision electronic flow/pressure control.
1.2.2 Compatible with packed and capillary columns.
1.2.3 Ceramic-treated amplifier boards ensure stability in humid conditions.
1.3 Safe and reliable with self-ignition and hydrogen leakage protection features.
1.4 Accurate temperature tracking for the furnace.
1.5 Precise programmed heating control for the furnace temperature.
1.5.1 Internal temperature control precision: <0.01
1.5.2 Temperature difference between points: ≤1ºC
1.5.3 Rapid heating and cooling, max programmed heating speed: 120ºC/min, balance time: 10 sec, cooling from 300ºC to 50ºC in 6 minutes.
1.5.4 Temperature accuracy is strictly controlled (difference less than 0.3ºC compared to actual temperature).
1.6 Advanced gas circuit cutting technology
1.6.1 Enables analysis of complex samples using multidimensional chromatography.
1.6.2 Saves time and period with column blowback function.
1.7 Columns can be heated individually, with temperature settings tailored for each column.
1.8 The GC6891N uses an advanced power distribution system. One 3000-watt UPS powers 10 GC units (each requiring 2250W) efficiently.
1.9 The instrument supports 8 valves (4-way, 6-way, 10-way, or liquid sampling valve), enabling automated operation through sequencing.
1.10 The GC6891N includes an 8-digit auto-injector (optional Agilent 7683/7693 model available).
.Parameters
| Column oven | |
| Furnace dimensions | 28 x 30 x 18cm |
| Temperature controlling range | From 5ºC above ambient to 450ºC; Liquid nitrogen cold trap: -80ºC to 400ºC; Dry ice cold trap: -55ºC to 400ºC |
| Temperature setting precision | 0.1ºC |
| Max programmed heating speed | 120ºC/min |
| Longest method run time | 999.99 min |
| 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 heating zones (excluding furnace temperature control, two injectors, two detectors, and two auxiliary heating areas). | |
| Maximum operating temperature in auxiliary heating areas | 300ºC |
| Detectors | |
| FID | |
| Maximum operating temperature | 450ºC |
| Minimum LOD: | ≤2.5pgC/s [n-C16] |
| Linear dynamic range | 107(±10%) |
| Data collection frequency | Max 100 Hz |
| Adapted to packed and capillary columns | |
| TCD | |
| Maximum operating temperature | 400ºC |
| Minimum LOD | ≤400 pg C3H8/ml (He) |
| Linear dynamic range | 105(±5%) |
| Data collection frequency | Max 100 Hz |
| Monofilament TCD and micro-ECD design, compatible with packed and capillary columns | |
| FPD | |
| Maximum operating 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 and capillary columns | |
| ECD | |
| Maximum operating temperature | 400ºC |
| Gas compensation detector type | 5% methane/argon/nitrogen |
| Minimum LOD | ≤0.01 Pg/sec lindane |
| Linear dynamic range | >5 x 105 |
| Data collection frequency | Max 100 Hz |
| Radioactive source | 12 mCi 63Ni |
| Adapted to packed and capillary columns | |
| NPD | |
| Maximum operating 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 and capillary columns | |
.Optional Auxiliary Equipment
DK-400A: A new generation automatic headspace injector.
.Application Fields
The GC6891N is widely used in oil extraction and refining, petrochemicals, fine chemicals, food safety, environmental protection, high-purity gases in electronics, research institutes, QC, safety supervision, public security forensics, and national security sectors.
.Detailed Images
·Packing & Shipping
(1) Standard export wooden case with high-quality cushioning material ensures the product arrives in good condition.
(2) Carefully check all packaging details before delivery to avoid any issues during transportation.
(3) Choose logistics companies based on customer preferences.
(4) We strive to ensure timely delivery of your goods.
·About Kejie Group
Nanjing Kejie Group has one research institute and four professional production bases. It is a leading manufacturer in R&D, manufacturing, and sales of gas chromatographs, HPLC, atomic absorption spectrometers, atomic fluorescence, UV-Vis spectrophotometers, headspace injectors, and other analytical instruments and related products.
·Our Service
We don’t stop when your equipment is shipped—we start.
1. One-year warranty supported by product experts.
2. AMC, post-warranty support, 24H/7D response.
3. Lifetime spare parts supply for our products.
4. Global long-term distribution partners ensure on-site customer service and consultation.
·Contact Information
Address:
2nd Floor, A1 Building, Nanjing University of Science & Technology,
No.129-3 Guanghua Road, Nanjing City,
Jiangsu Province, China
Postal Code: 210014
.Sales Contact
Tel: 86-0731-84135155
FAX: 86-0731-89833299
Feel free to submit your inquiry. We will contact you as soon as possible.
·FAQ
Q1: Are you the factory?
A1: Yes, we have one Research Institute and four Production Bases.
Q2: What is the warranty period? How do you provide it?
A2: Two years (24 months).
We perform strict inspections to ensure the quality of the instruments. If there’s an issue, we’ll resolve it within 12 hours. Free spare parts and shipping costs are provided. If the problem is due to quality, we'll replace the unit.
Q3: What is the production time?
A3: Usually 20 days, but some equipment may require extra time for debugging.
Q4: What is the delivery method?
A4: Light cargo is usually delivered via express. Air and sea transport are also acceptable with safe packaging.
Q5: What is the delivery time?
A5: Depending on the method and country, express delivery takes 6–15 days.
Q6: How to install and operate?
A6: Follow the instruction manual included with the equipment. After-sales technical support is also available.
Q7: What is the payment term?
A7: Typically 50% TT deposit, 50% TT before shipping. Western Union is also accepted.
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