Alcohol ethers in GC9890B gasoline; Special chromatograph for analysis of oxygen-containing compounds

Sales phone number:/ fifty-seven million seven hundred and eighty-six thousand three hundred and eleven

Technical Department: 13761342293

Product details:
The GC9890B automotive gasoline dedicated gas chromatograph analysis system strictly follows SH/T0693-2000 "Determination of Aromatic Hydrocarbon Content in Gasoline (Gas Chromatography Method)"

The analysis system designed by SH/T0663-1998 "Determination of Oxygen Compounds in Gasoline (Gas Chromatography Method)" meets the requirements of the national standard.

Specially designed for the determination of oxygen-containing compounds in automotive gasoline; Determination of benzene and toluene content; Analysis of aromatic hydrocarbons. It is related to the petrochemical industry, refineries, and quality supervision and inspection

Use an ideal specialized gas chromatograph in the field

instrumentconfiguration
GC9890B chromatograph (with imported automatic ten way valve)
2. Detector: FID
3. Chromatographic column:
A. Pre cut column TCEP, 0.56m × 0.38mm stainless steel column, B. Analysis column DB-1 (WCOT), 30m × 0.32mm × 3 μ m,

Cross linked methyl silicone quartz capillary column
4. Chromatography workstation
5. High purity nitrogen, hydrogen, and air
6. Standard samples:
A. Qualitative standard sample of alcohol ether
B. Mixed alcohol ether calibration standard sample
C. Alcohol ether internal standard
D. Aromatic hydrocarbon qualitative standard sample
E. Mixed aromatic hydrocarbon calibration standard sample
F. Aromatic internal standard
7. Analysis process:
7.1 Analysis of oxygen-containing compounds: Add the internal standard ethylene glycol dimethyl ether (DME) to the sample, first pass it into the TCEP pre cut column, and empty the light hydrocarbons,

Then switch between methylcyclopentane and methyl tert butyl ether, allowing oxygen-containing compounds to enter the WCOT column. After the tert amyl methyl ether flows out,

Blow back heavy hydrocarbon components.
7.2. Benzene and toluene analysis: Add the internal standard 2-hexanone to the sample, first pass it into the TCEP pre cut column, and empty C9 and lighter non aromatic hydrocarbons than C9,

Then switch before benzene flows out, allowing benzene, toluene, and 2-hexanone to enter the WCOT column. After 2-hexanone flows out, blow back the remaining components

(C8 and C8 above aromatic hydrocarbons and C10 and C10 above non aromatic hydrocarbons)
7.3. Aromatic hydrocarbon analysis: Add the internal standard 2-hexanone to the sample, first pass it into the TCEP pre cut column, and empty benzene, toluene, and non aromatic hydrocarbons with less than C12,

Then switch before the ethylbenzene flows out, allowing the aromatic hydrocarbons to enter the WCOT column. After the ortho xylene flows out, blow back the remaining components (C9 and above aromatic hydrocarbons) into the detector for detection.

Update time: August 10, 2020 17:18:32