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: 120°C/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, manufactured according to international standards. It integrates advanced technology and application experience, offering excellent performance, reliability, and sensitivity at a world-class level.
Features
1. EPC (Electronic Pressure Control) manages the injector flow, column carrier flow, and detector gas flow for precise control.
1.1 Micro-channel gas integrated board
- Imported micro-ratio and flow/pressure sensors
- Temperature self-compensation ensures accurate flow, with pressure control up to 0.01Psi.
1.2 Industry-leading Detector Design
- High-precision electronic flow/pressure control for all detectors
- Compatible with packed and capillary columns
- Special ceramic treatment on the amplifier board ensures stability in humid conditions.
1.3 Safe and Reliable Operation
- Features self-ignition and hydrogen leakage protection functions.
1.4 Accurate Tracking of Furnace Temperature
1.5 Precise Programmed Heating Control for Furnace
- Internal temperature control precision: < 0.01°C
- Temperature difference between points: ≤1°C
- Fast heating and cooling: max programmed speed 120°C/min, balance time 10 seconds, cooling from 300°C to 50°C in 6 minutes
- Temperature accuracy controlled within 0.3°C compared to actual temperature.
1.6 Advanced Gas Circuit Cutting Technology
- Enables analysis of complex samples using multidimensional chromatography
- Saves analysis time with column blowback function.
1.7 Individual Column Heating
- Each column can be heated independently with user-defined temperature settings.
1.8 Advanced Power Distribution System
- A single 3000W UPS can power 10 GC units (each requiring 2250W).
1.9 Import Valve Configuration
- Supports 8 valves (4-way, 6-way, 10-way, or liquid sampling valve)
- Fully automated sequence control.
1.10 Auto-injector Option
- 8-digit auto-injector available (Agilent 7683/7693 model optional).
Parameters
| Column Oven | |
| Furnace dimensions | 28 x 30 x 18 cm |
| Temperature controlling range | From 5°C above room temperature to 450°C; Liquid nitrogen cold trap: -80°C to 400°C; Dry ice cold trap: -55°C to 400°C |
| Temperature setting precision | 0.1°C |
| Max programmed heating speed | 120°C/min |
| Longest method run time | 999.99 min |
| Highest step of program | 7 steps |
| Programmed heating rate | 0.1–120°C/min (increment of 0.1°C) |
| Column loss can be compensated (dual channel column) | |
| Heating Area | |
| Six individually controlled heating areas (excluding furnace temperature control, two injectors, two detectors, and two auxiliary heating areas). | |
| Maximum operating temperature in auxiliary heating areas | 300°C |
| Detectors | |
| FID | |
| Maximum operating temperature | 450°C |
| Minimum LOD: | ≤2.5 pg C/s [n-C16] |
| Linear dynamic range | 107 (±10%) |
| Data collection frequency | Max 100 Hz |
| Adapted to packed and capillary columns | |
| TCD | |
| Maximum operating temperature | 400°C |
| Minimum LOD | <400 pg C3H8/ml (He) |
| Linear dynamic range | 105 (±5%) |
| Data collection frequency | Max 100 Hz |
| Monofilament TCD and micro-ECD design, adapted to packed and capillary columns | |
| FPD | |
| Maximum operating temperature | 250°C |
| 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 | 400°C |
| Gas compensation detector type | 5% methane/argon/nitrogen |
| Minimum LOD | <0.01 Pg/sec lindane |
| Linear dynamic range | >5 × 105 |
| Data collection frequency | Max 100 Hz |
| Radioactive source | <12 mCi 63Ni |
| Adapted to packed and capillary columns | |
| NPD | |
| Maximum operating temperature | 450°C |
| 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 | |
Auxiliary Facilities (Optional)
DK-400A: A new generation of automatic headspace injector.
Application Fields
The GC6891N is widely used in oil extraction and refining, petrochemicals, fine chemicals, food safety, environmental protection, electronics, scientific research, QC, safety inspection, public security forensics, and national security sectors.
Detail Pictures
·Packing & Shipping
1. Standard export wooden case with high-quality cushioning material ensures safe delivery.
2. Carefully check all packing details before shipping to prevent transport issues.
3. Logistics company can be chosen based on customer requirements.
4. We strive to ensure timely delivery.
·About Kejie Group
Nanjing Kejie Group has one research institute and four production bases, and is a leading manufacturer in R&D, manufacturing, and sales of gas chromatographs, HPLC, atomic absorption spectrometers, atomic fluorescence, UV-visible spectrophotometers, headspace injectors, and other analytical instruments.
·Our Service
We don't stop after your equipment is shipped—we start.
1. One-year warranty by product experts.
2. AMC and post-warranty support, 24/7 response.
3. Lifetime spare parts supply.
4. Global distribution partners ensure on-site service.
·Contact Information
Address:
2nd Floor, A1 Building, Nanjing University of Science and 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 contact us with your inquiry—we will respond as soon as possible.
·FAQ
Q1: Are you a factory?
A1: Yes, we have one research institution and four professional production bases.
Q2: What is the warranty period? How do you provide it?
A2: Two years (24 months).
We conduct strict quality checks to ensure your instrument is reliable. If there's an issue, we'll resolve it within 12 hours. Free replacement of parts and shipping if needed. If the problem cannot be fixed, we'll replace the unit.
Q3: What is the production time?
A3: Typically 20 days, with some equipment requiring extra debugging time.
Q4: What is the delivery method?
A4: Light cargo via express, air, or sea freight (with safe packaging).
Q5: What is the delivery time?
A5: Express delivery takes 6–15 days depending on the country.
Q6: How to install and operate?
A6: Follow the provided instruction manual. We also offer after-sales technical support.
Q7: What is the payment term?
A7: 50% TT deposit, 50% TT balance before shipping. Western Union is also acceptable.
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