Model NO.: GC5890N
Trademark: Kejie
Transport Package: Wooden
Specification: 67*53*49cm
Origin: China

GC5890N Professional Gas Chromatograph for Motor Gasoline
.Introduction
The GC5890N is a fully upgraded gas chromatograph designed specifically for the analysis of motor gasoline. This advanced instrument combines the best features of domestic systems to provide precise and specialized analysis of oxygen compounds, benzene, and aromatic hydrocarbons in fuel samples. It's ideal for laboratories that require high accuracy and reliability in their testing procedures.
.Features
4.1 The GC5890N offers high precision and multi-functionality with an intuitive and user-friendly interface.
4.1.1 It uses a new integrated digital electronic circuit, ensuring stable and reliable performance. Temperature control is accurate up to 0.01°C.
4.1.2 The system includes boot self-diagnosis, stopwatch function, timer operation, power-off protection, keyboard lock, anti-interference during power fluctuations, network data communication, and remote control—all easy to operate.
4.2 Enhanced injectors with multiple injection methods improve uniqueness and selectivity.
4.2.1 The unique inlet design solves injection discrimination issues. The dual-column compensation function minimizes program drift caused by heating and reduces background noise, resulting in the lowest LOD.
4.2.2 It comes with two types of injectors: packed column and split/splitless capillary injectors (with diaphragm cleaning function).
4.2.3 A 10-way valve blowback system is included. Additional options like auto/manual gas 6-way valve injectors, headspace injectors, thermal desorption injectors, cracking furnace injectors, and methane conversion furnace injectors are available.
4.3 The detectors offer excellent stability and sensitivity, meeting various detection requirements.
4.3.1 Two types of detectors are available: FID and TCD.
4.3.2 Both detectors have individual temperature control. FID is easy to clean and replace nozzles, while TCD stabilizes within ≤20 minutes.
4.4 Improved column control ensures precise programmed heating and furnace temperature regulation, offering stability, balance, and time efficiency.
4.4.1 Increased column volume and an intelligent backdoor system significantly reduce the time needed for detector stabilization after heating or cooling.
4.4.2 The heating furnace temperature range is from room temperature +5°C to 420°C.
4.4.3 It supports 7-step programmed heating with a heating rate of 0.1–120°C/min.
4.4.4 You can recalibrate the furnace temperature and set the maximum temperature up to 420°C based on your needs for faster stabilization.
.Parameters
Column oven | |
Furnace dimensions | 28 x 30 x 18cm |
Temperature range | Room temperature +5~420ºC |
Temperature setting | 1ËšC, programmed heating rate 0.1ËšC |
Maximum heating speed | 120ºC/min |
Temperature stability | It will be 0.01ËšC when the environmental temperature changes 1ËšC. |
Programmed heating | 7 steps |
Programmed heating rate | 0.1-120ºC/min (increment of 0.1ºC) |
Column loss can be compensated (dual channel column) | |
FID | |
Maximum operating temperature | 400ºC |
LOD | ≤5 x 10-12g/s[n-C16] |
Drift | ≤5 x 10-13A/min |
Noise | ≤2 x 10-13A |
Linear dynamic range | ≥107 |
TCD | |
Maximum operating temperature | 400ºC |
Sensitivity | ≥10000mv.mL/mg[n-C16] |
Drift | ≤100μV/30min |
Noise | ≤20μA |
Linear dynamic range | ≥105 |
.Application fields
This gas chromatograph is widely used in petroleum, chemical, food, pharmaceutical, environmental protection, disease control, safety supervision, water, electricity, metallurgy, scientific research, and quality control industries.
·Detail Pictures

HD LCD screen display, clear and could protect the eyes

You can choose different detectors, such as FID/TCD/FPD/ECD/NPD

·Packing&Shipping
(1) Standard export wooden case with high-quality cushioning material ensures the item arrives in good condition.
(2) Carefully check every packing detail before delivery to avoid any issues during transportation.
(3) Appointed logistics companies can be used based on customer preferences.
(4) We strive to ensure timely delivery of goods.

·About Kejie Group
Nanjing Kejie Group has one research institution and four professional production bases. It is a leading manufacturer in R&D, manufacturing, and sales of gas chromatography, high-efficiency liquid chromatography, atomic absorption spectrometers, atomic fluorescence, UV-visible spectrophotometers, headspace injectors, and other analytical instruments and related products.

·Our Service
Our commitment to you doesn't end when your equipment is shipped—it begins.
1. One-year warranty supported by product experts.
2. AMC and post-warranty support with 24/7 response.
3. Lifetime spare parts supply for our products.
4. Long-term distribution partners worldwide to ensure on-site customer consultation and service.
·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
Email: carina@kojtech.com
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Please feel free to submit your inquiry information to us. We will contact you as soon as possible.
·FAQ
Q1: Are you the factory?
A1: Yes, we are. We have one Researching Institution and four Professional Production Bases.
Q2: What's the warranty period? How do you provide this?
A2: Two years (24 months).
We have strict quality checks, so the instruments you receive are high-quality and reliable.
If there's any issue, we'll provide online solutions within 12 hours. We'll also cover the cost of spare parts and shipping.
If the problem is due to a quality issue and cannot be repaired, we'll send a new one.
Q3: What's the production time?
A3: Typically 20 days, though some equipment may require extra time for debugging.
Q4: What's the delivery method?
A4: Light cargo is usually shipped via express, while air and sea transport are also acceptable (with safe packaging).
Q5: What's 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 provided with the equipment. We also offer after-sales technical support.
Q7: What's the payment term?
A7: Usually 50% TT deposit, 50% TT balance before shipping. Western Union is also accepted.
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