Aviation gasoline standard detection gas chromatograph

Aviation gasoline standard detection gas chromatograph

Gas path diagram of gas chromatograph for detecting aromatic hydrocarbons in aviation gasoline:

Aromatic hydrocarbon analysis: Non aromatic hydrocarbons, benzene, and benzene derivatives with less than C12 are directly vented after flowing out of the pre column (see Figure 1A). Before ethylbenzene flows out, switch the valve to "ON" (see Figure 1B) to transfer the retained components to the analysis column WCOT. The internal standard and C8 aromatic hydrocarbons flow out in boiling point order and enter FID detection. After the flow of ortho xylene, immediately blow back the analysis column (see Figure IC) and blow back C9 and above aromatic hydrocarbons from the chromatography column into FID detection.

The main components detected in gasoline are:

Aviation gasoline standard detection gas chromatographThe interference characteristics of hydrocarbon substances in gasoline testing projects on other alcohols and ethers such as methanol are more obvious. In the real world, in order to effectively investigate and punish the human doping of industrial alcohols or ethers into gasoline, it is necessary to test the composition and content of gasoline substances according to the relevant national industry standards for gasoline testing

GC7890 gas chromatograph (including split/non split injection ports, dual FID detection and monitoring, with automatic blowback and reset ten way switching valve)

Gasoline testing refers to the professional technical means used to test gasoline products according to relevant standards, in order to obtain various component index data and provide technical support for determining product quality and grade. Gasoline, also known as ULP in English, appears as a transparent liquid and is mainly composed of C4-C12 fatty hydrocarbons and cyclic hydrocarbons, with small amounts of aromatic hydrocarbons and sulfides