Gas Chromatography

Gas Chromatography

Gas Chromatography

The gas chromatograph is a Chromatography that uses chromatographic separation technology and detection technology to perform qualitative and quantitative analyses of complex multi-component mixtures. There are many types of gas chromatographs with different functions, but their basic structures are similar.

Principle: Separation of mixtures based on differences in boiling points, polarity, and column.

Components: A gas chromatograph is generally composed of carrier gas system, sample introduction system, separation system, temperature control system, detector.

GC Components
Gas Chromatography Components
M6 Software interface
M6 Software interface

Features of Gas Chromatograph

  • Control system: designed for monitoring and controlling the instrument via the computer.
  • Column Compartment/oven with superior thermal performance, multistage programmed temperature control function
  • Advanced built-in data acquisition system , supporting real time instrument status monitoring, detection signal acquisition and PC control
  • High sensibility and stability detector.
  • 2 independent and analog signals output.
  • M6 software, compatible with GLP/FDA-21 CFR Parti 1 requirements and regulations.

DW-GC1120 Gas Chromatography

• Three detectors at most
• Three injectors at most
• Both capillary columns and double-packed columns
• Built-in acquisition system
GC126N Brochure
GC112N Brochure
GC112A-A Brochure
GC102AF Brochure

Different Application Solution of Gas Chromatograph

  1. Gas testing

What are the components (all) in the gas to be tested?

What is the approximate content?

Which components need to be tested?

If your sample is gas, please let us know the answer, then we can recommend suitable configuration.

Gas testing
  1. Determination of ethanol content in ethanol disinfectants

Ethanol disinfectant refers to a disinfectant made mainly of ethanol as raw material, in which the ethanol content is usually detected by gas chromatography.

ethanol standard spectrum
  1. Determination of chloroform(CHCl3) and carbon tetrachloride(CCl4) in water
chloroformCHCl3 and carbon tetrachlorideCCl4
  1. Determination of organochlorine pesticides

Organochlorine pesticides are organic compounds containing organochlorine elements in their components used to control plant diseases and insect pests. They are mainly divided into two categories: those using benzene as raw material and those using cyclopentadiene as raw material.

organochlorine pesticides
  1. Determination of aromatics content in gasoline

Benzene is a recognized carcinogen. Although it contributes a lot to the octane number of gasoline, it is harmful to the human body when it is discharged into the atmosphere due to incomplete evaporation and combustion. Therefore, from the perspective of environmental protection, it is necessary to limit the benzene content in gasoline.

Standard sample
gasoline standard

Please contact staff for specific applications and configuration recommendations.

Applications of Gas Chromatograph

1. Environmental protection: analysis, monitoring, and research of trace toxicants in polluted places such as atmospheric water sources.

2. Biochemistry: clinical application, pathological and toxicological research.

3. Food analysis: analysis and research of trace components in microbial beverages.

4. Chinese and Western medicine: analysis of raw material intermediates and finished products.

5. Petroleum processing: analysis and control of petrochemical industry, petroleum geology, oil composition, and ore control research.

6. Fine chemical analysis: additive analysis, catalyst analysis, raw material analysis, and product quality control.

7. Pesticide residue analysis: organochlorine pesticide residue analysis, pesticide residue analysis, herbicide residue analysis, etc.

Application of Gas Chromatograph

Why Choose Us for Gas Chromatograph?

  • One-Station Shopping

“Multiple suppliers” have always been an issue in the procurement process. Drawell as a one-stop laboratory equipment and scientific instruments supplier, can perfectly solve this problem. In addition to manufacturing our own equipment, we also represent other laboratory equipment. Our product lines are rich and diverse at competitive prices. Provide one-stop service to customers.

  • Customer-centric Services

User Training – Training by Drawell skilled engineers about installation, debug tests, technical services, etc. It can happen in our factory in China, or at the site in the customers’ country. Cost depends on where and when the training happens.

  • Online Support

To discuss the problem and get it resolved, online chats, real-time video calls, and remote guidance. For the after-sales stage, our online technical guidance is free and ready forever.

  • 100% Quality Guarantee Policy

1 year free official warranty, including repairing quality-damaged parts, and offering replacements of selected parts (shipping cost is extra). 5% of the product price is charged for extending the warranty before the end of the official warranty.

Customer Feedback of Gas Chromatograph

GC
GC1120

FAQ

We are a factory and can provide OEM services using the customer’s brand. The standard warranty is one year; extensions to the warranty period can be negotiated separately.

We could provide Online instruction; Real-time support by video call or voice chat; During warranty time, we can send product accessories when you need thecm for free; Technical guidance is free and ready forever.

FID – hydrocarbons and most organic compounds
TCD – permanent gases and general gas analysis
ECD – halogenated compounds and organochlorine pesticides
FPD – sulfur and phosphorus compounds
NPD – nitrogen- and phosphorus-containing compounds

FID provides high sensitivity for hydrocarbons and many organic compounds and is widely used for quantitative organic analysis.

TCD is a more universal and non-destructive detector, making it particularly useful for permanent gases and gas-mixture analysis.

Yes. Selected Drawell GC systems support multiple detector configurations.

For example, the GC1120 can accommodate up to three detectors, allowing laboratories to configure the instrument for different analytical methods.

Capillary columns are generally preferred when higher separation efficiency and resolution are required.

Packed columns provide higher sample capacity and remain useful for applications such as certain gas and industrial analyses.

The GC1120 supports both capillary and packed-column configurations.

Yes. GC is widely used for gas-mixture analysis.

Before selecting the configuration, please provide the gas components, approximate concentrations and target compounds, so the appropriate column and detector can be selected.

Yes. GC can be configured for pesticide analysis, particularly volatile or GC-compatible pesticide compounds. For example, ECD is commonly selected for organochlorine compounds, while FPD or NPD can be suitable for selected phosphorus- or nitrogen-containing pesticides.

Please provide:

  • Sample Type
  • Target Compounds
  • Expected Concentration Range
  • Required Detection Limit
  • Required Test Standard or Method
  • Daily Sample Quantity

Related Chromatograph Equipment