Gas chromatography detection system

NegotiableUpdate on 05/25

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Overview

The gas chromatography detection system utilizes the different distribution coefficients of each component in the gas phase and the stationary liquid-liquid phase of the sample. When the vaporized sample is carried into the chromatographic column by the carrier gas, the components are repeatedly distributed between the two phases. Due to the different adsorption or dissolution abilities of the stationary phase, the operating speeds of each component in the chromatographic column are different. After a certain column length, they are separated from each other and leave the chromatographic column in order to enter the detector. The generated ion flow signal is amplified and the chromatographic peaks of each component are plotted on the recorder.

Product Details

Gas chromatography detection system

The Yixian gas chromatography detection system utilizes the different distribution coefficients of each component in the sample between the gas phase and the stationary liquid-liquid phase. When the vaporized sample is carried into the chromatographic column by the carrier gas, the components are repeatedly distributed between the two phases. Due to the different adsorption or dissolution abilities of the stationary phase relative to each component

Therefore, the running speed of each component in the chromatographic column is different. After a certain column length, they separate from each other and leave the chromatographic column in order to enter the detector. The generated ion flow signal is amplified and the chromatographic peaks of each component are plotted on the recorder.
The Six Major Systems of Gas Chromatography

The gas circuit in a carrier gas chromatograph is a closed pipeline system in which the carrier gas operates continuously. The entire carrier gas system requires pure carrier gas, good sealing, stable flow rate, and accurate flow rate measurement.
The injection system is used to rapidly and quantitatively add gas or liquid samples to the upper end of the chromatographic column.
The core of a separation system is the chromatographic column, which separates multi-component samples into individual components. Chromatography columns are divided into two types: packed columns and capillary columns.
The function of the detection system detector is to convert the sample components separated by the chromatographic column into electrical signals based on their characteristics and content. After amplification, the color spectrum is recorded by a recorder.
In recent years, gas chromatographs have mainly used chromatographic data processors for signal recording or microcomputer data processing systems. The chromatographic data processor can print and record chromatograms, and can print the processed results such as retention time, mass fraction of the tested component, etc. on the same recording paper.
The temperature control system is used to control and measure the temperature of chromatography columns, detectors, and gasification chambers. It is an important component of gas chromatography and is indispensable.

Runable column loss compensation (dual channel)

Temperature control range:5 ℃~450 ℃ (above room temperature); Use liquid nitrogen cold trap -80 ℃~400 ℃, use dry ice cold trap -55 ℃~400 ℃

Temperature setting accuracy:0.1℃
Maximum program heating speed:120℃ /min
Maximum method runtime:999.99 min
Highest order of program temperature rise:7th order
Cheng Sheng rate:0.1~120 ℃/min (incremental 0.1 ℃)

Hydrogen flame ionization detector (FID)

Maximum operating temperature:450℃

Minimum detection limit:≤ 2.5pg C/s [nC16]
Dynamic linear range:10 7（±10%）

Data collection frequency:100 Hz

Gas Chromatography Analysis System Data Download