Specialized chromatograph for automotive gasoline

The GC-9560-HS automotive gasoline specific chromatograph is suitable for the determination of oxygen-containing compounds such as alcohols and ethers in samples of automotive unleaded gasoline, automotive methanol gasoline, and automotive ethanol gasoline. It can also be used to determine benzene and toluene in gasoline. Execution standards: SH/T0663-1998 "Determination of Alcohol and Ether Content in Gasoline", GB17930-2006 "Automotive Gasoline", GB18351-2004 "Ethanol Gasoline for Vehicles", SH/T0693-2000 "Determination of Aromatic Content in Gasoline".

GC-9560-HS specialized chromatograph for automotive gasolineMeaning and Application:
Adding ethers, alcohols, and other oxygen-containing compounds to gasoline can increase octane rating and reduce volatility. The type and concentration of oxygen-containing compounds added are specified and should be adjusted to ensure that they meet the quality requirements of commercial gasoline. The driving force, vapor pressure, phase separation, automobile exhaust emissions, and volatile automobile emissions are all related to the oxygen-containing compounds in the fuel. Therefore, accurate detection of oxygen-containing compounds is of great significance for various aspects such as gasoline quality.
In addition, the content of benzene and toluene is also very important for the quality of gasoline.

GC-9560-HS specialized chromatograph for automotive gasolineSummary of the method:

• Analysis of oxygen-containing compounds: Add the internal standard ethylene glycol dimethyl ether (DME) to the sample, first enter the TCEP pre cut column, empty the light hydrocarbons, and then switch between methylcyclopentane and methyl tert butyl ether to allow oxygen-containing compounds to enter the WCOT column. After the tert amyl methyl ether flows out, blow back the heavy hydrocarbon components.
• Analysis of benzene and toluene: Add the internal standard 2-hexanone to the sample, first enter the TCEP pre cut column, and empty C9 and C ratio₉Light non aromatic hydrocarbons are then switched before benzene flows out, allowing benzene, toluene, and 2-hexanone to enter the WCOT column. After 2-hexanone flows out, the remaining components (C₈And C₈The above aromatic hydrocarbons and C₁₀And C₁₀The above non aromatic hydrocarbons

GC-9560-HSDetermination of components:

Component category	Component name
alcohols	methanol	ethanol	isopropanol
	Tert butanol	n-PrOH	Sec-butyl alcohol
	Isobutanol	Tert-amyl alcohol	n-butanol
Ether class	mtbe	diisopropyl ether	TAME
Aromatic hydrocarbons	benzene	toluene

Measurement conditions:

	Oxygen-containing compounds	benzene and toluene	aromatic hydrocarbon
Column temperature	60℃	Program heating at 40 ℃	Program heating at 40 ℃
Injector temperature	230℃	200℃	200℃
detector temperature	250℃	250℃	250℃
Valve chamber temperature	80℃	80℃	80℃
internet traffic	5ml/min	5ml/min	5ml/min
Split Ratio	15∶1	10∶1	10∶1
Backblowing time	0.23min	1.67min	2.58min
Reset time	12.5min	23.6min	32.1min
Total analysis time	20min	25min	45min

Measurement range:

Component Name	range
methanol	0.1%-12%
ethanol	0.1%-12%
isopropanol	0.1%-12%
Tert butanol	0.1%-12%
n-PrOH	0.1%-12%
mtbe	0.1%-20%
Sec-butyl alcohol	0.1%-12%
diisopropyl ether	0.1%-20%
Isobutanol	0.1%-12%
Tert-amyl alcohol	0.1%-12%
n-butanol	0.1%-12%
TAME	0.1%-20%
benzene	0.1%-5.0%
toluene	1.0%-15%

Standard sample spectrum:

Expert system:
Y-600 Automotive Gasoline Specialized Chromatography WorkstationFully compliant with the data calculation process in SH/T0663-1998 and SH/T0693-2000, the density and molecular weight of each component automatically participate in the calculation. After inputting the gasoline quantity, internal scalar, and gasoline density, the "total oxygen content" can be directly obtained
1. Automatically calculate the quality ratio and response ratio
2. Automatically calculate correlation coefficient
3. Automatically calculate oxygen content and benzene and toluene content
4. Automatically calculate mass concentration and volume concentration